EduSahara™ Assignment
Name : Areas of Complex Shapes
Chapter : Tangents and Secants to a Circle
Grade : SSC Grade X
License : Non Commercial Use
Question
1
1.
In the given figure, a circle is inscribed touching the sides of an equilateral triangle of side 23 cm. Find the area of the shaded region
(i)
87.52 sq.cm
(ii)
95.52 sq.cm
(iii)
90.52 sq.cm
(iv)
93.52 sq.cm
(v)
85.52 sq.cm
Question
2
2.
In the given figure, the circle circumscribes a rectangle with sides 19.00 cm and 10.00 cm. Find the area of the remaining portion other than the rectangle
(i)
159.21 sq.cm
(ii)
187.21 sq.cm
(iii)
172.21 sq.cm
(iv)
156.21 sq.cm
(v)
200.21 sq.cm
Question
3
3.
In the given figure, the radius of the circle is 10 cm. Find the area of the minor sector
(i)
83.57 sq.cm
(ii)
75.57 sq.cm
(iii)
81.57 sq.cm
(iv)
73.57 sq.cm
(v)
78.57 sq.cm
Question
4
4.
In the given figure, the radius of the circle is 13 cm. Find the area of the major sector
(i)
398.36 sq.cm
(ii)
383.36 sq.cm
(iii)
375.36 sq.cm
(iv)
414.36 sq.cm
Question
5
5.
In the given figure ,PQRS is the diameter of the circle of radius 3.00 cm and PQ = QR = RS. Find the area of the shaded region
(i)
11.43 sq.cm
(ii)
9.43 sq.cm
(iii)
7.43 sq.cm
(iv)
8.43 sq.cm
(v)
10.43 sq.cm
Question
6
6.
In the given figure ,PQRS is the diameter of the circle of radius 6.00 cm and PQ = QR = RS. Find the perimeter of the shaded region
(i)
32.71 cm
(ii)
37.71 cm
(iii)
40.71 cm
(iv)
34.71 cm
(v)
42.71 cm
Question
7
7.
In the given figure , ABCD is a trapezium. A quarter circle AEFD is removed from the trapezium. If AD = CD = 12 and EB = 5.8 , find the area of the remaining portion
(i)
70.66 sq.cm
(ii)
65.66 sq.cm
(iii)
68.66 sq.cm
(iv)
62.66 sq.cm
(v)
60.66 sq.cm
Question
8
8.
In the given figure, ABCD is a square of side 19.00 cm . At the centre there is a circle with radius 4.75 cm and the same circle quadrants are at the four corners. Find the area of the shaded region.
(i)
231.18 sq.cm
(ii)
219.18 sq.cm
(iii)
207.18 sq.cm
(iv)
242.18 sq.cm
(v)
205.18 sq.cm
Question
9
9.
In the given figure, ABCD is a square of side 20.00 cm . At the centre there is a circle with radius 5.00 cm and the same circle quadrants are at the four corners. Find the perimeter of the shaded region.
(i)
102.86 cm
(ii)
77.86 cm
(iii)
109.86 cm
(iv)
100.86 cm
(v)
128.86 cm
Question
10
10.
In the given figure, ABCD is a square of side 13.00 cm and A, B, C, D are the centres of circular arcs, each of radius 6.50 cm. Find the area of the shaded region
(i)
39.21 sq.cm
(ii)
36.21 sq.cm
(iii)
41.21 sq.cm
(iv)
33.21 sq.cm
(v)
31.21 sq.cm
Question
11
11.
In the given figure, ABCD is a square of side 12.00 cm and A, B, C, D are centres of circles which touch externally in pairs. Find the area of the shaded region
(i)
483.43 sq.cm
(ii)
500.43 sq.cm
(iii)
455.43 sq.cm
(iv)
497.43 sq.cm
(v)
471.43 sq.cm
Question
12
12.
In the given figure, BC = 10 cm and AB = 6 cm. Find the area of the shaded region
(i)
81.86 sq.cm
(ii)
79.86 sq.cm
(iii)
73.86 sq.cm
(iv)
76.86 sq.cm
(v)
71.86 sq.cm
Question
13
13.
In the given figure, BC = 11 cm and AB = 7 cm. Find the perimeter of the shaded region
(i)
67.02 cm
(ii)
72.02 cm
(iii)
75.02 cm
(iv)
69.02 cm
(v)
77.02 cm
Question
14
14.
In the below figure, AB is the diameter of a circle with center O and OA = 12.00 cm . Find the area of the shaded region
(i)
211.43 sq.cm
(ii)
195.43 sq.cm
(iii)
210.43 sq.cm
(iv)
179.43 sq.cm
(v)
178.43 sq.cm
Question
15
15.
In the below figure, two circles with centers O and A touch internally at B. If OB = 17.00 cm and OA = 10.2 cm, find the area of the unshaded region
(i)
749.96 sq.cm
(ii)
777.96 sq.cm
(iii)
744.96 sq.cm
(iv)
762.96 sq.cm
(v)
776.96 sq.cm
Question
16
16.
In the below figure, BCPQ is a quadrant of a circle. BC = 20.00 cm and AB = 13 cm . Find the area of the shaded region
(i)
187.29 sq.cm
(ii)
210.29 sq.cm
(iii)
184.29 sq.cm
(iv)
176.29 sq.cm
(v)
168.29 sq.cm
Question
17
17.
In the below figure, BCPA is a quadrant of a circle. BC = 15.00 cm and CQA is a semicircle with CA as the diameter. Find the area of the shaded region
(i)
112.50 sq.cm
(ii)
90.50 sq.cm
(iii)
140.50 sq.cm
(iv)
107.50 sq.cm
(v)
126.50 sq.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)
226.29 sq.cm
(ii)
201.29 sq.cm
(iii)
212.29 sq.cm
(iv)
243.29 sq.cm
Question
19
19.
In the given figure, find the area of the shaded region
(i)
665.21 sq.cm
(ii)
663.21 sq.cm
(iii)
706.21 sq.cm
(iv)
693.21 sq.cm
(v)
681.21 sq.cm
Question
20
20.
The given figure consists of four small semi-circles of equal radii and two big semi-circles of equal radii. The radius of each big semi-circle is 12.00 cm which is the same as the diameter of the small semi-circle. Find the area of the shaded region
(i)
434.57 sq.cm
(ii)
469.57 sq.cm
(iii)
467.57 sq.cm
(iv)
428.57 sq.cm
(v)
452.57 sq.cm
Question
21
21.
The given figure consists of two quarter circles each of radius 14.00 cm and four semi-circles each of radius 7.00 cm. Find the area of the shaded region
(i)
333.00 sq.cm
(ii)
305.00 sq.cm
(iii)
308.00 sq.cm
(iv)
291.00 sq.cm
(v)
324.00 sq.cm
Question
22
22.
In the given figure, the width of the circular path is 6.00 m. Find the area of the shaded region
(i)
497.14 sq.m
(ii)
509.14 sq.m
(iii)
496.14 sq.m
(iv)
524.14 sq.m
(v)
516.14 sq.m
Question
23
23.
Find the area of the shaded region
(i)
30.93 sq.cm
(ii)
28.93 sq.cm
(iii)
25.93 sq.cm
(iv)
22.93 sq.cm
(v)
20.93 sq.cm
Question
24
24.
Find the area of the shaded region
(i)
65.00 sq.cm
(ii)
70.00 sq.cm
(iii)
73.00 sq.cm
(iv)
67.00 sq.cm
(v)
75.00 sq.cm
Question
25
25.
Find the area of the shaded region
(i)
362.07 sq.cm
(ii)
340.07 sq.cm
(iii)
319.07 sq.cm
(iv)
337.07 sq.cm
(v)
314.07 sq.cm
Question
26
26.
In the given figure, BC = 8.00 cm. Find the area of the shaded region
(i)
731.29 sq.cm
(ii)
737.29 sq.cm
(iii)
754.29 sq.cm
(iv)
772.29 sq.cm
(v)
778.29 sq.cm
Question
27
27.
In the given figure, arcs of two concentric circles of radii 20.00 cm and 6.00 cm are drawn with center O. If ∠HOI = 30°, find the area of the shaded region
(i)
90.33 sq.cm
(ii)
92.33 sq.cm
(iii)
95.33 sq.cm
(iv)
100.33 sq.cm
(v)
98.33 sq.cm
Question
28
28.
In the given figure △ABC is an equilateral triangle whose area is 140.3 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)
10.01 sq.cm
(ii)
13.01 sq.cm
(iii)
16.01 sq.cm
(iv)
18.01 sq.cm
(v)
8.01 sq.cm
Question
29
29.
In the given figure, ABCD is a square with side 19.00 cm. Find the area of the shaded region
(i)
193.29 sq.cm
(ii)
206.29 sq.cm
(iii)
219.29 sq.cm
(iv)
182.29 sq.cm
(v)
221.29 sq.cm
Question
30
30.
Find the area of the shaded region in the given figure common between the two quadrants of circles of radius 10.00 cm each
(i)
60.14 sq.cm
(ii)
52.14 sq.cm
(iii)
54.14 sq.cm
(iv)
62.14 sq.cm
(v)
57.14 sq.cm
Assignment Key
1) (iii)
2) (iii)
3) (v)
4) (i)
5) (ii)
6) (ii)
7) (ii)
8) (ii)
9) (i)
10) (ii)
11) (i)
12) (iv)
13) (ii)
14) (ii)
15) (iv)
16) (iii)
17) (i)
18) (i)
19) (v)
20) (v)
21) (iii)
22) (ii)
23) (iii)
24) (ii)
25) (iv)
26) (iii)
27) (iii)
28) (ii)
29) (ii)
30) (v)