Question

if area of a semi circular region is 77 cm sq find its perimeter

Answer 1

ar. of semi circular region => 77 cm sq. = 22/7*r^2*1/2 => 77*7*2/22 = r^2

so....7 *7 = r^2 => 7cm =r...so perimeter of the semicircular region => 22/7 *7 + 2r => 22 cm + 14 = 36 cm

Answer 2

Here's your answer

Isn't it simple!

Hope it helps you.

Please mark as the brainliest