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Find the perimeter of this semi-circle with radius, r = 22cm. Give your answer rounded to 1 DP.
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Find the perimeter of this semi-circle with radius, r = 22cm. Give your answer rounded to 1 DP.

User Jeremy McGee
by
5.6k points

1 Answer

4 votes

Answer:

69.1 cm

Explanation:

Circumference of a circle

c = 2πr

Half of that would be a semi-circle

c = πr

c = π * 22

c = 69.115038379

Rounded

69.1 cm

User Nara
by
5.4k points
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