Question

Find the circumference of a semicircle with diameter d cm​

Answer 1

Circumference of the semi-circle is d(π/2 + 1)

Explanation:

Circumference of a semicircle is πr + 2r

So, since r = d/2,

therefore, π*d/2 + 2*d/2 = πd/2 + d = d(π/2 + 1).