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Perimeter of circle find by following equation :
[tex]P = 2 \times (\pi) \times (radius)[/tex]
Semicircle is half of circle , thus :
[tex]P = \frac{1}{2} \times (2) \times (\pi) \times (11) \\ [/tex]
[tex]P = 11\pi[/tex]
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Answer:
56.54
Step-by-step 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
