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Helllllllpppp, MATH, PLEASE

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The area of a circle is 28in squared. The length of the radius is _____in.

circle

asked May 28, 2013 in ALGEBRA 2 by rockstar Apprentice

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1 Answer

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The area of a circle fomula = πr² where r is the radius

The area of a circle = 28in sq

Therefore πr² = 28

But π = 3.14

3.14(r²) = 28

r² = 28 / 3.14

r² = 8.92

Take square root to each side

r = 2.99in.

answered May 28, 2013 by diane Scholar

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