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Mathematics 7 Online
OpenStudy (anonymous):

radius=___ diameter=___ circumference=____ area=121 cm.

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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