Question

circumference of a semicircles​

Answer 1

Hello , here is your answer :

Step-by-step explanation:

Perimeter of Semicircle

The perimeter of a semicircle is the sum of the half of the circumference of the circle and diameter. As the perimeter of a circle is 2πr or πd. So, the perimeter of a semicircle is 1/2 (πd) + d or πr + 2r, where r is the radius.

Therefore,

The perimeter of Semicircle = (1/2) π d + d or (πr + 2r)

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