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EulnadiamarceR EulnadiamarceR
  • 11-11-2016
  • Mathematics
Answered

Find the radius of a circle with the given circumfrence.


15pi ft.

A30 pi ft.
B30 ft.
C7.5 pi ft.
D7.5 ft.

Verified Answer :

Ethan618
Ethan618 Ethan618
  • 11-11-2016

C=2pir. C=15pi. 15pi=2pir. R= 15/2 Pi ft. Answer is C.

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Anonymous Anonymous
  • 14-11-2016

The solution to the problem is as follows:

Given: C = 15 pift

Answer:

C = 2
pir

r = C/2
pi
r = 15 pift / 2pi

r = 7.5 ft

Therefore, the answer is letter D. 7.5 ft.

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