20-05-2016
Mathematics

contestada

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

the area of a circle thats 64 pi square inches long Whats the radius class=

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kgebon80 kgebon80

20-05-2016

A=pi*r^2 sqrt64=8 in radius

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apologiabiology apologiabiology

20-05-2016

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

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