Question

Find the circumference of a semicircle with diameter d cm​

Answer 1

Step-by-step explanation:

The formula for the circumference of a semicircle is, C = (πr + 2r), where 'r' is the radius. As we know that diameter is twice the value of the radius, thus, d = 2r. The formula for the circumference of a semicircle becomes, C = π(d/2) + d.

Answer 2

Answer:

(π × d/2) + d

Explanation:

Radius= d/2 Circumference of full circle = 2π × d/2 Therefore, circumference of semiscircle= {(2π × d/2)/2} +d

= (π × d/2) + d

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