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OpenStudy (darkworld131):
what is the area of a circle who's diameter is 8 cm
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OpenStudy (rulnick):
Area is pi times square of radius or pi times square of diameter, divided by 4.
OpenStudy (rulnick):
So, in this case, pi (4cm)^2 or 16 pi cm^2.
OpenStudy (darkworld131):
oh ok thank you :)
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