Question

find the area of shaded reagiin If radii of concentric circle with center o are 7and14 and Aoc =40°​

Answer 1

Answer:

The Area of Major Sector of bigger circle =

360 -theta / 360 × 22/7 × r × r

360- 40 /360 × 22/7 × 14× 14

By solving it you will get answer as,

547.55 cm^2

The Area of major sector of smaller circle =

360- theta / 360 × 22/7 × r × r

360 - 40 /360 ×22/7×7×7

By solving it you will get answer as,

136.88cm^2

The area of shaded region = area of bigger cicles major sector - area of smaller cicles major sector

Area of shaded region = 547.55 - 136.88

= 410.67 cm ^2

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