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posted by Anonymous Sunday, January 9, 2011 at 5:25pm.

can you tell me what is the radius for 9in for a circle

What is 9 inches? Is it the diameter? the circumference?

ircumfrence

C = pi * d 9 = 3.14 * d 9 / 3.14 = d ? = d The radius is half of the diameter.

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