Question

if area of semicircular region is 12.32 meter square find its perimeter

Answer 1

Answer:

Area of semicircular region=12.32m²

1/2(πr²)=12.32

πr²=12.32*2

πr²=24.64

r²=24.64*(7/22)

r²=1.12*7

r²=7.84

r=2.8m

Perimeter=πr+2R

=22/7*2.8 + 2*2.8

=14.4m

Hope I am correct.....

PEACE