Question

54 cm long piece of wire is bent into the shape of semicircular arc bound by its diameter find its radius

Answer 1

This is its solution

Answer 2

Dear Student,

◆ Answer -

r = 10.5 cm

● Explanation -

Given that total length of wire is 54 cm.

The wire is bent into the shape of semicircular arc bound by its diameter.

l = πr + 2r

l = r (π + 2)

54 = r (3.142 + 2)

r = 54 / 5.142

r = 10.5 cm

Hence, radius of the semicircle is 10.5 cm.

Thanks dear. Hope this helps you...