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The area of a circle that's 64 pi square inches long. What's the radius ?

The area of a circle that's 64 pi square inches long. What's the radius ?
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4 votes
The area of a circle that's 64 pi square inches long. What's the radius ?

The area of a circle that's 64 pi square inches long. What's the radius ?-example-1
User Vlad Havriuk
by
8.2k points

2 Answers

5 votes
A=pi*r^2 sqrt64=8 in radius
User Mark Rammmy
by
8.4k points
3 votes
the area of anything cannot be any amount of square inches 'long'
long is 1 dimentional while area is 2 dimentional


anyway
area=(pi)radius^2
64pi=area
therfor
64pi=(pi)radius^2
divide both sides by pi
64=radius^2
sqrt both sides
8=radius
8 inches
User Sachin Hosmani
by
8.2k points
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