Question

if perimeter of semicircular protector is 36 cm find the diameter​

Answer 1

Perimeter of semicircular protractor=36 cm

πr+2r=36

⇒(π+2)r=36

⇒(

7

22

+2)r=36

⇒

7

36

r=36

⇒r=

36

36×7

⇒r=7

Therefore, diameter =2r=2×7=14 cm

Pls mark me brainliest I am only a little away from being Ace

I beg you