Question

find the area of the circle following diameter 21m

Answer 1

Area of Circle = πr^2 = (22/7) × 10.5 × 10.5
= 22/7 × 110.25 = 3.14 × 110.25 = 346.185

Answer 2

Hey sup!

As per the question,

D=21m.
So r= D/2=21/2=10.5

Area = πr^2.
=22/7 × 10.5 ×10.5
=22×1.5×10.5
=33×10.5
=346.5m^2.

Hope it helps.