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Worksheets

Workshop calculations

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

If the circumference of a circle is 44 cm, it’s area equal to

a)

74 cm2

b)

154 cm2

c)

145 cm2

d)

85 cm2

2.

The sides of a triangle are 3cm, 4cm, 5cm find its area

a)

6.7 m2

b)

6 m2

c)

8 m2

d)

7.8 m2

3.

Area of rhombus having diagonals d1 and d2 is

a)

d1 d2

b)

0.5 d1d2

c)

2 d1 d2

d)

d1+d2

4.

if the perimeter of a circular ground is 31.416m then the area of the ground will be

a)

783.4 m2

b)

78540 m2

c)

78.54 m2

d)

7.854 m2

5.

Area of an isosceles triangle is 1000m2 base=100mm, then height of the triangle is

a)

10 mm

b)

15 mm

c)

20 mm

d)

25 mm

6.

The surface area of a sphere is 36π cm2, then the volume is

a)

12 π cm3

b)

18 π cm3

c)

72 π cm3

d)

36 π cm3

7.

The base radius of a conical tent is 6cm and its height is 8m calculat the area of the canvas used to make it

a)

188.4 m2

b)

168 m2

c)

215.2 m2

d)

251.2 m2

8.

The sector of a circle of radius 90mm and angle 120 degree represents development of the lateral surface area of a cone, the top view of the cube is a circle of diameter

a)

90mm

b)

30mm

c)

50mm

d)

60mm

9.

Calculate the side of the square which will have the area as the rectangle 50mm by 25 mm side

a)

42.36

b)

38.57

c)

32.10

d)

35.36

10.

The length, breadth and height of a rectangular prism are 20cm, 15cm and 19cm respectively.Its whole surface area will be

a)

1000 cm2

b)

1200 cm2

c)

1100 cm2

d)

1300 cm2

11.

A rectangular sheet metal measures 12 cm by 8cm. Four quadrants of circle of radius 2cm each are cut away at the corners. Find the area of the remaining portion

a)

52.34 cm2

b)

83.44 cm2

c)

64.45 cm2

d)

8.53 cm2

12.

Find the area of a right angular triangle whose base is 15 cm and hypothesis 21cm

a)

110.18 cm2

b)

119.65 cm2

c)

128.40 cm2

d)

168.70 cm2

13.

A bucket of base dia 24 cm, top dia 40 cm and height 30cm is filled with water. Find the weight of the water

a)

25.34 kg

b)

34.45 kg

c)

32.42 kg

d)

18.48 kg

14.

If the perimeter of circle is 50cm, it’s area will be ......... cm2

a)

189.04

b)

199.04

c)

209.04

d)

50

15.

In a triangle when two adjacent sides a and b and their included angle c are given, then its area will be

a)

0.5 ab cos c

b)

0.5 ab tan c

c)

0.5 ab sin c

d)

ab sin c

16.

The length of a room exceeds its breadth by 10 decimetre and its perimeter is 100 decimetre. The cost of carpeting it at Rs.5/m2 is

a)

Rs 600

b)

Rs 3000

c)

Rs 30

d)

Rs 300

17.

The price Rs.100 of an object is increased twice by 10% then the present price is

a)

120

b)

110

c)

121

d)

200

18.

How many lead balls each of radius 1cm can be made from a sphere whose radius is 8cm?

a)

64

b)

192

c)

412

d)

512

19.

If a sphere of 20cm diameter is cast into cones of same base diameter and height 10cm, the number of cones available is

(a)  

20.

What is the diameter of a wheel if it travels 440mm in each revolution?

a)

220 mm

b)

140 mm

c)

110 mm

d)

44mm