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OpenStudy (anonymous):
radius=___ diameter=___ circumference=____ area=121 cm.
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OpenStudy (anonymous):
how do you find the answer? please help me???
OpenStudy (anonymous):
Do you know the equation for the area?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
From that you can find the radius. The diameter is twice the radius. From that, you can use an equation to find the circumference.
OpenStudy (anonymous):
So the radius is 11/sqrt pi. Diameter is 22/sqrt pi. Circumference is 22 sqrt pi.
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