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plsssssssssssssssssssssssssssssss help meThe circumference of a circle is equal to 72 pi. Find the radius of this circle
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plsssssssssssssssssssssssssssssss help meThe circumference of a circle is equal to 72 pi. Find the radius of this circle

User Benmcredmond
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1 Answer

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You know the circumference. You want to find the radius.

This is using the reverse circumference formula!

CIRCUMFERENCE OF A CIRCLE:

2 \pi r = circumference

Now plug in.
2 \pi r = 72 \pi

Simplify and isolate r.


2r=72


r=36

the radius is 36.
User Sofrustrated
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