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The circumference of a circle is 21pi what is the area?
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The circumference of a circle is 21pi what is the area?

User Neyda
by
4.6k points

1 Answer

4 votes

Answer:

346.36

Explanation:

C=piD

so the21 is theD

A=piR^2

R=D/2(1/2D)

A=22/7×21/2^2=346.36

User Ygesher
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