Q99 of 131 Page 226

Find the areas of the shaded region:

Diameter of the small circles = cm


Radius of the small circles = cm


Area of two small circles = 2 × = cm2 = 4.8 cm2


Diameter of the large circle =14 cm


Radius of the large circle = × 7 × 7 = 154 cm2


Area of shaded region = Radius of the large circle - Area of two small circles = 154 - 4.8 = 149.2 cm2


∴ Area of shaded region = 149.2 cm2


More from this chapter

All 131 →
97

Find the area enclosed by each of the following figures :

 98

Find the areas of the shaded region:

 100

A circle with radius 16 cm is cut into four equal parts and rearranged to form another shape as shown in Fig. 9.52:


Does the perimeter change? If it does change, by how much does it increase or decrease?

 101

A large square is made by arranging a small square surrounded by four congruent rectangles as shown in Fig. 9.53. If the perimeter of each of the rectangle is 16 cm, find the area of the large square.