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Len [333]
3 years ago
10

The area of circle z is 64 pi ft^2 What is the value of r?

Mathematics
2 answers:
vampirchik [111]3 years ago
7 0

we know that

The area of the circle is equal to

A=\pi r^{2}

where

r is the radius of the circle

In this problem we have

A=64\pi \ ft^{2}

substitute in the formula and solve for r

64\pi=\pi r^{2}

Simplify

64=r^{2}

Square root both sides

r=8\ ft

therefore

<u>the answer is</u>

The value of r is 8\ ft

erica [24]3 years ago
6 0
To find area of a circle, one must perform the equation "pi(r)^2" we have all information but the radius which has become inclusive in the question. To draw out the radius, all you gotta do is defuse 64 into its square root-8. The radius is 8.
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