Question

12. Flowers are to be planted in the shaded portion which isshown by sectors of two concentric circles of radii 14 m and 7 m. Find the area of the shaded region. (π = 22/7)
Ans should be ( 77m sp )
please give step by step explination​
( the person who gives ans will be marked as brainlist )

Answer 1

Answer: The area of shaded region would be 462 m^2.

Step-by-step explanation:

The area of the shaded region= pi*R^2-pi*r^2= pi*(R^2-r^2)

where R= 14m and r= 7m

So,

The area of the shaded region= pi*(14^2-7^2)= 22/7*(196-49)

=> 22/7*147= 22*21

=> 462 m^2

HOPE IT HELPS