EduSahara™ Worksheet

Question 1

1.

If radius of the circle is 10.00 cm, the area of the circle is

(i)

314.29 sq.cm
(ii)

298.29 sq.cm
(iii)

296.29 sq.cm
(iv)

327.29 sq.cm
(v)

318.29 sq.cm

Question 2

2.

If radius of the circle is 9.00 cm, the area of the semicircle is

(i)

127.29 sq.cm
(ii)

152.29 sq.cm
(iii)

109.29 sq.cm
(iv)

110.29 sq.cm
(v)

143.29 sq.cm

Question 3

3.

If radius of the circle is 8.00 cm, the perimeter of the semicircle is

(i)

36.14 cm
(ii)

38.14 cm
(iii)

46.14 cm
(iv)

41.14 cm
(v)

44.14 cm

Question 4

4.

If diameter of the circle is 10.00 cm, the area of the circle is

(i)

81.57 sq.cm
(ii)

75.57 sq.cm
(iii)

73.57 sq.cm
(iv)

78.57 sq.cm
(v)

83.57 sq.cm

Question 5

5.

If diameter of the circle is 16.00 cm, the area of the semicircle is

(i)

86.57 sq.cm
(ii)

117.57 sq.cm
(iii)

100.57 sq.cm
(iv)

82.57 sq.cm
(v)

108.57 sq.cm

Question 6

6.

If diameter of the circle is 10.00 cm, the perimeter of the semicircle is

(i)

22.71 cm
(ii)

25.71 cm
(iii)

20.71 cm
(iv)

28.71 cm
(v)

30.71 cm

Question 7

7.

If circumference of the circle is 50.29 cm, the area of the circle is

(i)

201.14 sq.cm
(ii)

205.14 sq.cm
(iii)

174.14 sq.cm
(iv)

223.14 sq.cm
(v)

194.14 sq.cm

Question 8

8.

If circumference of the circle is 31.43 cm, the area of the semicircle is

(i)

36.29 sq.cm
(ii)

44.29 sq.cm
(iii)

39.29 sq.cm
(iv)

42.29 sq.cm
(v)

34.29 sq.cm

Question 9

9.

If circumference of the circle is 50.29 cm, the perimeter of the semicircle is

(i)

38.14 cm
(ii)

46.14 cm
(iii)

41.14 cm
(iv)

36.14 cm
(v)

44.14 cm

Question 10

10.

If area of the circle is 154.00 sq.cm, the area of the semicircle is

(i)

82.00 sq.cm
(ii)

74.00 sq.cm
(iii)

80.00 sq.cm
(iv)

77.00 sq.cm
(v)

72.00 sq.cm

Question 11

11.

If area of the circle is 254.57 sq.cm, the perimeter of the semicircle is

(i)

41.29 cm
(ii)

46.29 cm
(iii)

51.29 cm
(iv)

49.29 cm
(v)

43.29 cm

Question 12

12.

In the given figure, a circle is inscribed touching the sides of an equilateral triangle of side 20 cm. Find the area of the shaded region

(i)

71.44 sq.cm
(ii)

63.44 sq.cm
(iii)

68.44 sq.cm
(iv)

65.44 sq.cm
(v)

73.44 sq.cm

Question 13

13.

In the given figure, the circle circumscribes a rectangle with sides 20.00 cm and 15.00 cm. Find the area of the remaining portion other than the rectangle

(i)

179.07 sq.cm
(ii)

164.07 sq.cm
(iii)

219.07 sq.cm
(iv)

191.07 sq.cm
(v)

207.07 sq.cm

Question 14

14.

In the given figure , ABCD is a trapezium. A quarter circle AEFD is removed from the trapezium. If AD = CD = 15 and EB = 5.2 , find the area of the remaining portion

(i)

92.22 sq.cm
(ii)

90.22 sq.cm
(iii)

84.22 sq.cm
(iv)

87.22 sq.cm
(v)

82.22 sq.cm

Question 15

15.

In the given figure, ABCD is a square of side 10.00 cm . At the centre there is a circle with radius 2.50 cm and the same circle quadrants are at the four corners. Find the area of the shaded region.

(i)

57.71 sq.cm
(ii)

55.71 sq.cm
(iii)

60.71 sq.cm
(iv)

65.71 sq.cm
(v)

63.71 sq.cm

Question 16

16.

In the given figure, ABCD is a square of side 15.00 cm and A, B, C, D are the centres of circular arcs, each of radius 7.50 cm. Find the area of the shaded region

(i)

43.21 sq.cm
(ii)

51.21 sq.cm
(iii)

45.21 sq.cm
(iv)

53.21 sq.cm
(v)

48.21 sq.cm

Question 17

17.

In the given figure, BC = 15 cm and AB = 8 cm. Find the perimeter of the shaded region

(i)

88.43 cm
(ii)

98.43 cm
(iii)

93.43 cm
(iv)

96.43 cm
(v)

90.43 cm

Question 18

18.

In the given figure, d = 12.00 cm is the diameter of the semi-circles. Find the area of the shaded region

(i)

239.29 sq.cm
(ii)

203.29 sq.cm
(iii)

226.29 sq.cm
(iv)

232.29 sq.cm
(v)

218.29 sq.cm

Question 19

19.

Find the area of the shaded region

(i)

22.93 sq.cm
(ii)

28.93 sq.cm
(iii)

30.93 sq.cm
(iv)

25.93 sq.cm
(v)

20.93 sq.cm

Question 20

20.

Find the area of the shaded region

(i)

146.21 sq.cm
(ii)

110.21 sq.cm
(iii)

108.21 sq.cm
(iv)

141.21 sq.cm
(v)

123.21 sq.cm

Question 21

21.

In the given figure, arcs of two concentric circles of radii 17.00 cm and 5.10 cm are drawn with center O. If ∠HOI = 70°, find the area of the shaded region

(i)

160.72 sq.cm
(ii)

142.72 sq.cm
(iii)

183.72 sq.cm
(iv)

147.72 sq.cm
(v)

164.72 sq.cm

Question 22

22.

In the given figure △ABC is an equilateral triangle whose area is 97.43 sq.cm. With each vertex of the triangle as center, a circle is drawn with radius equal to half the length of the side of the triangle . Find the area of the shaded region

(i)

10.04 sq.cm
(ii)

9.04 sq.cm
(iii)

7.04 sq.cm
(iv)

11.04 sq.cm
(v)

8.04 sq.cm

Assignment Key