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The perimeter of a semicircle is 20.56 miles. What is the semicircle’s radius?

The perimeter of a semicircle is 20.56 miles. What is the semicircle’s radius?
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The perimeter of a semicircle is 20.56 miles. What is the semicircle’s radius?

asked
User Romuleald
by
8.5k points

1 Answer

6 votes

Answer:

13.1 feet

Explanation:

C = (1/2)πd

20.56 = (1/2)(3.14)d

20.56 = 1.57d

13.1 feet ≈ d

answered
User Denys Medynskyi
by
8.8k points
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