Question

The perimeter of a semicircle with a radius of 11cm

Answer 1

56.54

Explanation:

R=11cm

circumference=2pieR

2*22/7*11

44/7*11

69.08

circumference/2

69.08/2

34.54

diameter

11*2

22

perimeter= 34.54+22

56.54

Answer 2

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Perimeter of circle find by following equation :

`P = 2 * (\pi) * (radius)`

Semicircle is half of circle , thus :

`P = (1)/(2) * (2) * (\pi) * (11) \\`

`P = 11\pi`

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