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Class 6 Mathematics, highlighting the key concepts:
Playing with Numbers
1.
(a) Identify the number of triangles in the given figure.
(b) Write the names of all triangles.
2.
(a) Identify three triangles in the figure
(b) Write the names of six line segments
(c) Which two triangles have ∠Q as common?
(a) acute angle
(b) obtuse angle
(c) right angle
(d) straight angle
Measures of Triangles | Type of Triangle |
1. 3 sides of equal length | i. Scalene |
2. 2 sides of equal length | ii. Isosceles right angled |
3. All sides are of different length | iii. Equilateral |
4. 3 acute angles | iv. Acute angled |
5. 1 right angles with two sides of equal length | v. Isosceles |
Class 6 Maths Integers Write the following numbers with appropriate signs:
1.
(a) Subtract-31 from 50.
(b) Subtract 50 from -31.
2. Subtract the sum of -16 and -26 from the sum of 25 and -40.
3. Simplify :
1 + (-3) + 5 + (-7) + 9 + (-11) + 13 + (-15)
(a)1/8
(b)8/1
(c)3/1
(d)1/3
. The simplest form of 48/60 is:
(a) 5/4
(b) 4/5
(c) 8/10
(d)12/15
(b) 6
(c) 2
(d) 5
20. The next equivalent fraction of the given fraction:
(a)
(b)
(c)
(d)
1. A number representing a part of a ………………. is called a fraction.
2. A fraction with denominator greater than the numerator is called a …………….. fraction.
3. Fractions with the same denominator are called ……………….. fractions.
4. 13 is a …………… fraction.
5. and are ………………… proper fractions.
6. and are ……………… proper fractions.
7. The fraction in simplest form is …………….. .
8. The fraction in simplest form is …………… .
9. When is written with denominator as 12, its numerator is ………….. .
10. The value of 1 + is ……………… .
1. Add the fraction and .
2. Subtract from .
3. A girl dyes dresses. She had to dye 30 dresses. She has so far finished 20 dresses. What fraction of dresses has she finished?
4. Compare and .
5. Shubham painted of the wall and his sister painted of the wail space. How much did they paint together?
6. Javed was given of a basket of oranges. What fraction of oranges was left in the basket?
1. What fraction of an hour is 40 minutes?
2. Subtract from .
3. A rectangle is divided into a certain number of equal parts. If 16 of the parts so formed represent the fraction , find the number of parts in which the rectangle has been divided.
4. Grip size of a tennis racquet is 11 cm; express the size as an improper fraction.
1. Arya, Abhimanyu and Vivek shared lunch. Arya has brought two sandwiches, one made of vegetable and one of jam. The other two boys forgot to bring their lunch. Arya agreed to share his sandwiches so that each person will have an equal share of each sandwich.
(a) How can Arya divide his sandwiches so that each person has an equal share?
(b) What part of a sandwich will each boy receive?
2. Find the equivalent fraction of having:
(a) denominator 20
(b) numerator 9
(c) denominator 30
(b) numerator 27
3. Ramesh had 20 pencils, Sheelu had 50 pencils and Jamaal had 80 pencils. After 4 months, Ramesh used up 10 pencils, Sheelu used up 25 pencils and Jamaal used up 40 pencils. What fraction did each use up? Check if each has used up an equal fraction of her/his pencils?
1. What is the place value of 2 in the given decimal 924.75?
(a) ones
(b) tens
(c) tenth
(d) hundredth
2. What is the place value of 5 in the given decimal 924.75?
(a) ones
(b) tens
(c) tenth
(d) hundredth
3. What is the decimal expansion of ?
(a) 0.5
(b) 5.0
(c) 0.05
(d) 0.005
4. Write the following as decimals: “Two ones and five-tenths”.
(a) 2.5
(b) 25
(c) 21.5
(d) none of these
5. 600 + 2 + can be written in decimal form as:
(a) 6002.8
(b) 602.8
(c) 628
(d) none of these
6. 5.008 can be written in words as:
(a) Five thousand eight
(b) Five point eight
(c) Fifty point eight
(d) Five point zero zero eight
7. Which of the following points lies between 0.1 and 0.2?
(a) 0.19
(b) 1.9
(c) 10.9
(d) 1.09
8. Which of the following is smaller?
(a) 0.7
(b) 0.07
(c) 0.007
(d) 0.0007
9. 137 + can be written in the decimal form as:
(a) 137.5
(b) 137.05
(c) 13.75
(d) 1.375
10. Two tens and nine tenths in decimal form is given by:
(a) 2.9
(b) 20.09
(c) 2.09
(d) 20.9
11. 32.549 > 32.458 because:
(a) Tenth part is more
(b) Hundredth is more
(c) Thousandth is more
(d) Whole part of both numbers are equal
12. 4.19 m in cm can be written as:
(a) 419 cm
(b) 41.9 cm
(c) 0.419 cm
(d) 41.09 cm
13. 8888 m in Km can be written as:
(a) 88.88 Km
(b) 888.8 Km
(c) 8.888 Km
(d) 8888 Km
14. Which of the following numbers can be placed in the tens column if the given number is 297.35?
(a) 2
(b) 9
(c) 7
(d) 3
15. Which of the following numbers can be placed in the tenth column if the given number is 297.35?
(a) 2
(b) 9
(c) 7
(d) 3
16. The sum of 0.007 + 8.5 + 30.08 is:
(a) 38.587
(b) 3.100
(c) 18.508
(d) 385.87
17. Find the value of 9.756 – 6.28.
(a) 16.036
(b) 9.128
(c) 3.476
(d) 34.76
18. Find the value of 35 – 2.54.
(a) 32.46
(b) 1.46
(c) 3.246
(d) 37.54
19. Raju bought a book for ₹ 35.65. He gave ₹ 50 to the shopkeeper. How much money did he get back from the shopkeeper?
(a) ₹ 36.15
(b) ₹ 14.35
(c) ₹ 80.65
(d) ₹ 1.435
20. The number 0.125 can be written as fractions in lowest terms:
(a)
(b)
(c)
(d)
1. The place value of a digit at the tenth place is 10 times the same digit at the ones place.
2. The decimal 3.725 is equal to 3.72 correct to two decimal places.
3. In the decimal form, fraction = 3.125
4. The decimal 23.2 = 23
5. 42.28 – 3.19 = 39.09
1. 4.55 + 9.73 = …………….. .
2. 8.76 – 2.68 = …………….. .
3. The value of 50 coins of 50 paisa =₹ ……………. .
4. 3 hundredths + 3 tenths = ……………. .
5. Decimal 16.25 is equal to the fraction ……………… .
1. Express as a decimal.
2. Express 0.041 as a fraction.
3. Convert 5201 g to kg.
4. Convert 2009 paise to rupees.
5. Round off 75.195 to nearest hundredths.
6. What should be added to 4.762 to get 7?
1. Arrange in ascending order:
0.011, 1.001, 0.101, 0.110
2. Add the following 20.02 and 2.002
3. Which one is greater?
1 m 40 centimetres + 60 centimetres or 2.6 metres
4. What should be added to 25.5 to get 50?
1. Sarita travels 18km 75m every day. Out of this she travels 7km 150m by bus and rest by an auto. How much distance does she travel by an auto?
2. Suresh purchased 6 kg 250g wheat, 3kg 50g sugar and 10kg 800g flour. Find the total weight of his purchases in Kg.
3. The heights of two trees A and B are 17.04m and 8.92m respectively. Find the difference in their heights.
A. Multiple Choice Questions (MCQs)
1. A ……………….. is a collection of numbers gathered to give some information.
(a) bar graph
(b) data
(c) frequency
(d) tally mark
2. The tally mark frequency …………….. .
(a) 6
(b) 5
(c) 10
(d) 8
3. In a bar graph bars are made ……………. .
(a) horizontally
(b) vertically
(c) sometimes horizontally sometimes vertically
(d) oblique
4. Representation of data in the form of picture is called ………………. .
(a) bar graph
(b) pictograph
(c) histogram
(d) none of these
5. In a bar graph space between rectangles is always ……………. .
(a) unequal
(b) increasing
(c) decreasing
(d) equal
6. The tally mark frequency ………….. .
(a) 6
(b) 5
(c) 0
(d) 4
7. In a bar graph the width of the rectangle is ……………. .
(a) unequal
(b) increasing
(c) decreasing
(d) equal
The following pictograph shows the number of absentees in a class of 30 students during the previous week. Read the table and answer the questions given below (Q8 – Q13):
8. On which day were the maximum number of students absent?
(a) Thursday
(b) Friday
(c) Wednesday
(d) Saturday
9. Which day had full attendance?
(a) Thursday
(b) Friday
(c) Wednesday
(d) Saturday
10. What was the total number of absentees in that week?
(a) 600
(b) 130
(c) 150
(d) 100
11. What was the total number of absentees on Tuesday?
(a) 20
(b) 25
(c) 50
(d) 10
12. On which day 5 students were absent?
(a) Thursday
(b) Friday
(c) Wednesday
(d) Saturday
13. On which day 30 students were absent?
(a) Thursday
(b) Friday
(c) Wednesday
(d) Saturday
The colors of fridges preferred by people living in a locality are shown by the following pictograph. Read the table and answer the questions given below (Q14 – Q20):
14. Find the number of people preferring the colour blue.
(a) 20
(b) 80
(c) 50
(d) 10
15. Find many people who like the color red?
(a) 120
(b) 80
(c) 50
(d) 110
16. Find the number of people preferring white colour.
(a) 20
(b) 80
(c) 50
(d) 10
17. Which color is preferred most?
(a) red
(b) blue
(c) yellow
(d) black
18. Which colour preferred least?
(a) green
(b) white
(c) yellow
(d) black
19. Which two colours liked by the same number of people?
(a) green and red
(b) white and yellow
(c) green and black
(d) black and red
20. Find the number of people preferring yellow color.
(a) 20
(b) 80
(c) 50
(d) 60
B. The following pictograph shows the number of Maruti vans manufactured during a week. Read the table and answer the questions given below (Q1 – Q7):
1. On which day were the least number of Maruti Vans manufactured?
2. Find the number of Maruti Vans manufactured on Wednesday.
3. On which day were the maximum number of Maruti Vans manufactured?
4. Find out the approximate number of Maruti Vans manufactured in the particular week.
5. On which days were the same number of Maruti Vans manufactured?
6. Find the number of Maruti Vans manufactured on Monday.
7. Find the number of Maruti Vans manufactured on Thursday.
C. Following table shows the number of bicycles manufactured in a factory during the year 1998 to 2002. Read the table and answer the questions given below (Q8 – Q13):
Year | No. of bicycles manufactured |
1998 | 800 |
1999 | 600 |
2000 | 900 |
2001 | 1100 |
2002 | 1200 |
8. In which year were the maximum number of bicycles manufactured? …………….
9. In which year were the minimum number of bicycles manufactured? ……………..
10. How many bicycles were manufactured from 1998 to 2002? ……………..
11. What is the difference between the number of bicycles manufactured in 2002 and 1999? ………………
12. How many bicycles were manufactured from 1998 to 2000? ………………
13. In which year did the number of bicycles differ the most from the preceding year? …………..
D. The bar graph shows the number of cars sold in a showroom during five different years (Q14 – Q17):
Look at the bar graph and answer the following questions:
14. In which year, the maximum cars were sold? ……………………
15. In which year, the minimum cars were sold? …………………….
16. What is the scale chosen on the vertical line representing the number of cars? …………………
17. How many cars were sold in the year 2009? ……
1. The length and breadth of a rectangle are 40 cm and 10 cm respectively. Its perimeter is:
(a) 100 cm
(b) 120 cm
(c) 140 cm
(d) none of these
2. The side of a square is 8 cm. Its area is:
(a) 64 cm2
(b) 84 cm2
(c) 100 cm2
(d) none of these
3. The area of a rectangle is 40 cm2
If its breadth is 4 cm, then its length is:
(a) 20 cm
(b) 30 cm
(c) 10 cm
(d) none of these
4. The area of the square is 100 cm2. Its side is:
(a) 20 cm
(b) 30 cm
(c) 10 cm
(d) none of these
5. The side of a square is 12 m. Its perimeter is:
(a) 36 m
(b) 40 m
(c) 42 m
(d) none of these
6. If the area of a square is 2.25 m2, then its perimeter is:
(a) 7 m
(b) 5 m
(c) 6 m
(d) none of these
7. The side of a square is 8 cm. If its side is doubled, then its new perimeter is:
(a) 64 cm
(b) 81 cm
(c) 121 cm
(d) none of these
8. The length and breadth of a rectangle are 10 cm and 8 cm respectively. If its length is doubled, then its new area is:
(a) 80 cm2
(b) 160 cm2
(c) 240 cm2
(d) none of these
9. The amount of surface enclosed by a closed figure is called its:
(a) perimeter
(b) area
(c) flat surface
(d) interior region
10. What is the perimeter of a regular pentagon whose each side measuring 5 cm?
(a) 10 cm
(b) 20 cm
(c) 15 cm
(d) 25 cm
11. What will be the cost of tilting a rectangular plot of area 800 sq.m, if the cost of tiling 100 sq.m is ₹ 6
(a) ₹ 14
(b) ₹ 48
(c) ₹ 4800
(d) ₹ 900
12. What is the length of the garden if area of rectangular garden of width 60 m is 300 sq.m?
(a) 900 m
(b) 90 m
(c) 18 m
(d) 5 m
13. The perimeter of a triangle whose sides are 5 cm, 2 cm and 3 cm.
(a) 30 cm
(b) 11 cm
(c) 17 cm
(d) 10 cm
14. What is the length of side of square whose area is 64 m2?
(a) 16 m
(b) 32 m
(c) 8 m
(d) 64 m
15. The perimeter of an isosceles triangle with equal sides of length 4 cm and third side of length 6 cm will be:
(a) 10 cm
(b) 8 cm
(c) 20 cm
(d) 14 cm
16. The perimeter of a rectangle is 130 m. If the breadth of the rectangle is 30 m, find its area.
(a) 640 m2
(b) 600 m2
(c) 700 m2
(d) none of these
17. The sides of a rectangle are in the ratio 5 : 4. If its perimeter is 72 cm then the length is:
(a) 20 cm
(b) 30 cm
(c) 40 cm
(d) none of these
18. The cost of putting a fence around a square field at ₹ 2.50 per metre is ₹ 200. The length of each side of the field is:
(a) 40 m
(b) 20 m
(c) 80 m
(d) none of these
19. The area of a rectangle is 650 cm2 and one of its sides is 13 cm. Find the perimeter of the rectangle.
(a) 120 cm
(b) 130 cm
(c) 126 cm
(d) none of these
20. A room is 5m 40 cm long and 3m 75cm wide. Find the area of the carpet needed to cover the floor.
(a) 20 m2
(b) 20.25 m2
(c) 21 m2
(d) none of these
1. Find the perimeter of the equilateral triangle whose each side is 7cm.
2. Find the length of a rectangle whose perimeter is 52 cm and breadth is 12 cm.
3. A rectangular carpet measures 3m 45cm by 2m 25cm . What is the perimeter of the carpet?
4. Leena bent a wire 132 cm long into a square. What is the length of the side of a square?
5. Find the perimeter of a triangle whose sides are 5cm, 7cm and 10cm.
6. Find the perimeter of a regular pentagon with each side measuring 7cm.
1. Find the cost of fencing a rectangular park of length 450m and breadth 300m at the rate of ₹ 32 per meter.
2. How much distance does a jogger cover if he runs 5 times around a rectangular Park 76m long and 35m wide?
3. A rope costing ₹ 8 per meter needs to be laid around a square field of side 150m. How much will the total rope cost?
4. Sweety runs around a square park of side 75m. Bulbul runs around a rectangular park with length 60m and breadth 45m. Who covers less distance?
1. How much would it cost to lay a wall to wall carpet in a room 10m long and 7m wide, with a carpet that costs ₹ 115 per m2.
2. How many tiles of 10cm by 6cm will be needed to pave a rectangular path of 5m by 3m?
3. Following figures are formed by joining six unit squares. Which figure has the smallest perimeter?
1. Number of matchsticks required to make a pattern of “T”:
(a) 5
(b) 2
(c) 3
(d) 4
2. Number of matchsticks required to make a pattern of “U”:
(a) 5
(b) 2
(c) 3
(d) 4
3. Number of matchsticks required to make a pattern of “Z”:
(a) 5
(b) 2
(c) 3
(d) 4
4. Number of matchsticks required to make a pattern of “A”:
(a) 5
(b) 6
(c) 3
(d) 4
5. Perimeter of the square, whose each side is ‘n’ cm is:
(a) n + 4
(b) 4n
(c) n – 4
(d)
6. Perimeter of an equilateral triangle, whose each side is ‘X’ unit is:
(a) 3x
(b) 3 – x
(c)
(d) 3 + x
7. Diameter of circle whose radius is ‘r’ is:
(a)
(b) 2r
(c) 2 – r
(d) 2 + r
8. x + y = y + x is
(a) Commutative property
(b) Associative property
(c) Closure property
(d) Distributive property
9. How many variables are used in the expression 2x + 3y + 5?
(a) 1
(b) 2
(c) 3
(d) 5
10. The expression for the statement: “y multiplied by 10 and then 7 added to product”.
(a) 10 + y + 7
(b) 7y + 10
(c) 10y + 7
(d) 10y
11. What is the statement for the expression 2y – 9?
(a) 2y subtracted from 9
(b) 9 subtracted from 2y
(c) 9 subtracted from 9
(d) thrice of y minus 9
12. p = 3 is a solution of equation:
(a) 2p + 5 = 17
(b) 5p + 2 = 17
(c) 2p + 17 = 5
(d) 5p + 17 = 2
13. The equation for the statement: one fourth of a number minus 4 gives 4.
(a) 4x – 4 = 4
(b) – 4 = 4
(c) x – 4 = 4
(d) x – 4 =
14. a × (b + c) = a × b + a × c is
(a) Commutative property under addition
(b) Associative property under multiplication
(c) Distributive property of multiplication over addition
(d) Closure property
15. Which of the following is an equation?
(a) x – 3 > 0
(b) x + 3 < 0
(c) x
(d) x + 3 = 0
16. The value of variable in the expression is:
(a) fixed
(b) not fixed
(c) zero
(d) one
17. The value of p – q + pq for p = -1, q = -2 is:
(a) 0
(b) 1
(c) -5
(d) 3
18. Write the statements “If you subtract 5 from 6 times a number, you get 7.” in the form of equations:
(a) 6x – 5 = 7
(b) 5x – 6 = 7
(c) x – 5 = 7
(d) x – 6 = 7
19. Which is a solution of the equation 3x – 14 = 4?
(a) x = 2
(b) x
(c) x = 4
(d) x = 6
20. Write the statements “If you take away 6 from 6 times a number, you get 60” in the form of equations:
(a) 6x + 6 = 60
(b) 6x – 6 = 60
(c) x – 6 = 60
(d) none of these
1. The distance (in km) travelled in h hours at a constant speed of 40km per hour is …………….. .
2. ‘x ’ exceeds y by 7 can be expressed as ……………. .
3. The number of days in w weeks is ………………. .
4. r rupees = ……………… paise.
5. If 7x + 4 = 25, then the value of x is …………… .
1. The price of 1 pen is ₹ 15 and the price of 1 pencil is ₹ 5. Write an expression for the total amount payable for buying x pens and y pencils.
2. The side of a square is x. Express the perimeter of the square using x.
3. If the radius of a circle is denoted by r, express its diameter in terms of r.
4. Express the associative property of addition of whole numbers using the variables x, y and z.
5. Give an expression for each of the following:
(a) The sum of b and 9
(b) Subtract 4 from x
(c) Multiply 5 by y
(d) 3 more than four times a number y.
(e) One-fifth of x added to the sum of a and b.
6. If x = 3, evaluate
(a) 2x = ………….
(b) 2x + 3 = ………….
(c) 3x – 2 = …………
7. If x = 3, y = -1, evaluate
(a) 2x + y = …………
(b) 3x – y = ………….
(c) 3x + 2y = ……….
1. Complete the table and by inspection find the solution to the respective equations:
(a) m + 6 = 10
(b) 2m – 5 = -1
2. One fourth of a number is 8. Find the number.
3. Three times a number is 21. Find the number.
4. Which of the following are equations?
(a) 2x + 7 > 3x
(b) 3m < 15
(c) 5x + 2 = 12
(d) z + 13 < 16
1. Pick out the solution from the values given in the bracket.
(a) p + 12 = 17(2, 5, 6, 8)
(b) = 2 (10, 11, 13, 14)
(c) r – 5 = 3 (2, 8, 7, 5)
2. Mother has made laddus. She gives some laddus to guests and family members; still 5 laddus remain. If the number of laddus mother gave away is l, how many laddus did she make?
3. A bus travels at v km per hour. It is going from Daspur to Beespur. After the bus has travelled 5 hours, Beespur is still 20 km away. What is the distance from Daspur to Beespur? Express it using ν.
1. If x, 30, 24 and 16 are in proportion then find the value of x.
(a) 45
(b) 60
(c) 80
(d) none of these
2. If 8, 18, 18 and x are in proportion then find the value of x.
(a) 405
(b) 40.5
(c) 81
(d) none of these
3. If 14, 16, x and 24 are in proportion then find the value of x.
(a) 105
(b) 10.5
(c) 21
(d) none of these
4. The mean proportion of 9 and 16 is:
(a) 3
(b) 12
(c) 33
(d) 11
5. The ratio of 90 cm to 1.5 m is …………….
(a) 3 : 5
(b) 5 : 3
(c) 60 : 1
(d) 4 : 3
6. 6 : 4 is the equivalent ratio of ………….
(a) 2 : 3
(b) 3 : 2
(c) 1 : 2
(d) 1 : 4
7. Fill in the blanks:-
(a) 5
(b) 4
(c) 3
(d) 2 + 7
8. Find the value of x in 4 : 3 = x : 12?
(a) 4
(b) 12
(c) 16
(d) 3
9. In proportion first and the last terms are called ……………
(a) mean terms
(b) extreme terms
(c) middle terms
(d) none of these
10. If the cost of 6 cans of juice is ₹ 210, then what is the cost of 4 cans of juice?
(a) ₹ 120
(b) ₹ 140
(c) ₹ 100
(d) ₹ 80
11. Which of the following is correct?
(a) 3 : 4 = 15 : 24
(b) 12 : 24 = 6 : 12
(c) 7 : 3 = 14 : 3
(d) 5 : 10 = 9 : 20
12. Find the value of x in 3 : 4 = x : 16?
(a) 4
(b) 16
(c) 12
(d) 3
13. Two quantities can be compared onlv if they are in the same …………….. .
(a) ratio
(b) units
(c) proportion
(d) none of these
14. The ratio is said to be not in simplest form if common factor is …………….. .
(a) 1
(b) Other than 1
(c) -1
(d) None of these
15. Fill in the blanks: 30, 40, ………….., and 60 are in proportion.
(a) 15
(b) 45
(c) 35
(d) 10
16. Fill in the blanks:-
(a) 8
(b) 12
(c) 3
(d) 6
17. Divide 20 pens between Sheela and Sangeeta in the ratio of 3 : 2.
(a) 12, 8
(b) 11, 9
(c) 10, 10
(d) 14, 6
18. 36 : 84 is equivalent ratio of …………….
(a) 7 : 3
(b) 3 : 7
(c) 6 : 7
(d) 12 : 7
19. 6 bowls cost ₹ 90. What would be the cost of 10 such bowls?
(a) ₹ 300
(b) ₹ 150
(c) ₹ 200
(d) ₹ 250
20. The car that I own can go 150 km with 25 litres of petrol. Flow far can it go with 30 litres of petrol?
(a) 125 km
(b) 150 km
(c) 250 km
(d) none of these
1. 4 : 7 = 20 : 35
2. If b : a = c : d, then a, b, c, d are in proportion.
3. The ratio 4 : 16 is in its lowest form.
4. The two terms of a ratio can be two different units.
5. The ratio of ₹ 8 to 80 paise is 1 : 10.
1. Present age of father is 42 years and that of his son is 14 years. Find the ratio of:
(a) Present age of father to the present age of son
(b) Age of the father to age of the son, when son was 12 years old
(c) Age of father after 10 years to the age of son after 10 years.
(d) Age of father to the age of son when father was 30 years old
2. Find the ratio of the following:
(a) 90 cm to 1.5 m
(b) 4 days to 2 weeks
(c) 60 paise to ₹ 3
(d) 50 minutes to 2 hours
(e) 3 dozen to 3 scores
(f) 3.5 litres to 700 ml
3. Express each of the following in its simplest form :
(a) 3 km: 1500 km
(b) 250 : 1000
(c) 34 : 85
(d) 4.8 m :240m
4. In a year Ravi earns ₹ 4,00,000 and saves ₹ 1, 50,000, find the ratio of
(a) money that Ravi earns to the money he saves.
(b) money that Ravi saves to the money he spends.
1. A piece of wire 40 cm in length is divided into two parts that are in the 3 : 5. Find the length of each part.
2. The ratio of Amit’s age to that of Reena’s age is 3 : 2. Complete the table that shows the possible ages of Amit and Reena.
3. The marked price of a table is ₹ 625 and its sale price is ₹ 500. What is the ratio of the sale price to the marked price?
4. A rectangular sheet of paper is of length 1.2 m and width 21 cm. Find the ratio of width of the paper to its length.
1. A scooter travels 120 km in 3 hours and a train travels 120 km in 2 hours. Find the ratio of their speeds.
2. Find two numbers whose sum is 100 and whose ratio is 9 : 6.
3. A metal pipe 3 metre long was found to weigh 7.6 kg. What would be the weight of the same kind of 7.8 m long pipe?
1. A parallelogram has …………… lines of symmetry:
(a) 0
(b) 1
(c) 2
(d) 3
2. Which of the following alphabets has line symmetry?
(a) P
(b) Z
(c) A
(d) Q
3. How many lines of symmetries are there in an equilateral triangle?
(a) 1
(b) 2
(c) 3
(d) 4
4. How many lines of symmetries are there in an isosceles triangle?
(a) 1
(b) 2
(c) 3
(d) 4
5. How many lines of symmetries are there in a rhombus?
(a) 1
(b) 2
(c) 3
(d) 4
6. How many lines of symmetries are there in a square?
(a) 1
(b) 2
(c) 3
(d) 4
7. How many lines of symmetries are there in a regular pentagon?
(a) 1
(b) 2
(c) 3
(d) 4
8. How many lines of symmetries are there in a rectangle?
(a) 1
(b) 2
(c) 3
(d) 4
9. Find the number of lines of symmetry of the following figure:
(a) 1
(b) 2
(c) 3
(d) 4
10. Find the number of lines of symmetry of the following figure:
(a) 1
(b) 2
(c) 3
(d) 4
11. Find the number of lines of symmetry in a regular hexagon.
(a) 6
(b) 2
(c) 3
(d) 4
12. Find the number of lines of symmetry in the below left figure.
(a) 1
(b) 2
(c) 3
(d) 4
13. Find the number of lines of symmetry in the above right sided figure.
(a) 1
(b) 2
(c) 3
(d) none of these
14. Find the number of lines of symmetry in the below left figure.
(a) 1
(b) 2
(c) 3
(d) 4
15. Find the number of lines of symmetry in the above right sided figure.
(a) 1
(b) 2
(c) 3
(d) 4
16. Find the number of lines of symmetry in a circle.
(a) 1
(b) 2
(c) 3
(d) none of these
17. Which of the following has no line of symmetry?
(a) S
(b) A
(c) U
(d) H
18. Which of the following has both horizontal as well as vertical line of symmetry?
(a) Z
(b) B
(c) P
(d) I
19. Find the number of lines of symmetry in a scalene triangle.
(a) 0
(b) 1
(c) 2
(d) 3
20. Which letter look the same after reflection when the mirror is placed vertically?
(a) Z
(b) P
(c) M
(d) N
1. The number of lines of symmetry in a picture of Taj Mahal is …………… .
2. The number of lines of symmetry in a rectangle and a square are ……………. (equal/unequal).
3. The digits having only two lines of symmetry are ………….. and …………… .
4. The number of capital letters of the English alphabets having no line of symmetry is ………….. .
5. The number of lines of symmetry in a regular hexagon is ………………. .
C. Open your geometry box. There are some drawing tools. Observe them and complete the following table:
Number of the total | Number of lines of symmetry |
1. The Ruler | |
2. The Divider | |
3. The Compasses | |
4. The Protractor | |
5. Triangular piece with two equal sides | |
6. Triangular piece with unequal sides |
Shape | Number of lines of symmetry |
1. Square | a. 5 |
2. Kite | b. 4 |
3. Equilateral triangle | c. 3 |
4. Rectangle | d. 2 |
5. Regular hexagon | e. 1 |
6. Scalene triangle | f. 0 |
7. Circle | g. 6 |
8. Regular pentagon | h. Infinitely many |
1. Write all the capital letters of the English alphabets which have more than one lines of symmetry.
2. Draw the following shapes and find the number of lines of symmetry
(a) Equilateral triangle
(b) Rectangle
(c) Square
(d) Parallelogram
3. On Squared paper, sketch the following:
(a) A hexagon with exactly two lines of symmetry.
(b) A triangle that has no line of symmetry.
1. On Squared paper, sketch the following:
(a) A triangle with a horizontal line of symmetry but no vertical line of symmetry.
(b) A quadrilateral with a horizontal line of symmetry but no vertical line of symmetry.
2. Write the letters of the word ‘MATHEMATICS’ which have no line of symmetry.
3. Write the number of lines of symmetry in each letter of the word ‘SYMMETRY’.
1. Which geometrical instrument is used to draw line segments and to measure their lengths?
(a) ruler
(b) compasses
(c) divider
(d) set squares
2. Which geometrical instrument is used to draw perpendicular and parallel lines?
(a) ruler
(b) compasses
(c) divider
(d) set squares
3. Which geometrical instrument is used to compare lengths?
(a) protractor
(b) compasses
(c) divider
(d) set squares
4. Which geometrical instrument is used to draw and measure angles?
(a) protractor
(b) compasses
(c) divider
(d) set squares
5. Which geometrical instrument is used to mark off equal lengths but not to measure them and draw arcs and circles?
(a) protractor
(b) compasses
(c) divider
(d) set squares
6. Name the geometrical instrument having a pair—a pointer on one end and a pencil on the other.
(a) protractor
(b) compasses
(c) divider
(d) set squares
7. Name the geometrical instrument having a pair of pointers.
(a) protractor
(b) compasses
(c) divider
(d) set squares
8. Name the geometrical instrument having two triangular pieces.
(a) ruler
(b) compasses
(c) divider
(d) set squares
9. Name the geometrical instrument having a semi-circular device graduated into 180 degree-parts.
(a) protractor
(b) compasses
(c) divider
(d) set squares
10. A …………… is a simple closed curve all of whose points are at the same distance from a fixed point.
(a) circle
(b) diameter
(c) radius
(d) none of these
11. Which of the following angles cannot be constructed using ruler and compasses?
(a) 75°
(b) 15°
(c) 135°
(d) 85°
12. The instrument to measure an angle is a:
(a) ruler
(b) protractor
(c) divider
(d) compasses
13. The instrument to draw a circle is:
(a) ruler
(b) protractor
(c) divider
(d) compasses
14. Number of set squares in the geometry box is:
(a) 0
(b) 1
(c) 2
(d) 3
15. The line segment joining any two points on the circle is called …………….. .
(a) chord
(b) diameter
(c) radius
(d) none of these
16. A …………. is the longest chord of a circle.
(a) circle
(b) diameter
(c) radius
(d) none of these
17. The line segments forming a polygon are called ……………… .
(a) vertices
(b) sides
(c) angles
(d) curves
18. Number of lines which can be drawn from one point:
(a) one
(b) infinite
(c) two
(d) zero
19. A line has ………….. length.
(a) definite
(b) indefinite
(c) no
(d) none of these
20. The edge of a ruler draws …………… .
(a) ray
(b) line
(c) line segment
(d) curve
1. With ruler and compasses, we can bisect any given line segment.
2. Only one perpendicular bisector can be drawn to a given line segment.
3. With a given centre and a given radius, only one circle can be drawn,
4. Using only the two set-squares of the geometry box, an angle of 40° can be drawn.
5. Infinitely many perpendiculars can be drawn to a given ray.
6. Using the set squares 30° – 60° -90″ and 45° – 45° – 90°, we can draw an angle of 75°.
1. Draw a line segment AB and then draw a perpendicular bisector of it.
2. Draw any angle. Construct a copy of the angle using ruler and compasses.
3. If A8 = 8.4cm and CD = 2.6cm, construct the following line segments.
(i) AB + CD
(ii) 2AB
(iii) AB – CD
4. Draw an angle of 50° with the help of a protractor. Draw a ray bisecting this angle.
5. Draw a circle with centre O and radius 4.8cm.
6. Draw a circle with centre O and radii 3.2cm and 4cm.
7. Draw a line segment AB. Produce it to AC so that AC = 3AB. Verify by measurement.
8. Draw a line segment PQ = 5.7cm. with PQ = 5.7cm as diameter, draw a circle.
1. Draw a circle with centre O and any radius. Draw its chord and name it AB. Draw the perpendicular bisector of AB. Does it pass through the centre of the circle?
2. Draw an angle of 150° and label it ∠XYZ. Construct its bisector. Measure each of the angles so obtained.
3. Use a protractor to draw ∠POQ = 80° Make a copy of it using a ruler and a compass.
4. Use a ruler and a compass to draw the following angles:
(a) 30°
(b) 45°
1. Draw a line AB. Mark a point P on it. Use a ruler and a compass to draw a perpendicular to AB through P.
2. Construct a line segment of 6.2cm. Bisect it and measure the length of each part.
3. Draw a line AB. Take a point P outside it. Through P draw a line perpendicular to AB.
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