Question

In figure find area of shaded region where ob =7 cm and oa = 14 cm and angle aoc = 40degree ​

Answer 1

Area of Shaded region = 154/3 cm²

Step-by-step explanation:

ob = 7 cm  ( radius of smaller circle)

oa = 14 cm ( radius of larger circle)

∠aoc = 40°

Area of Shaded region = (40°/360°) π ( 14² - 7²)

using π = 22/7

= (1/9) (22/7) ( 21 * 7)

= (1/9) * 22 * 21

= (1/3) * 22 * 7

= 154/3

Area of Shaded region = 154/3 cm²

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