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anonymous
 one year ago
If a circle has a circumference of C, what is the area of the circle in terms of C?
A=πC
A=C24π
A=2Cπ
A=2C2
anonymous
 one year ago
If a circle has a circumference of C, what is the area of the circle in terms of C? A=πC A=C24π A=2Cπ A=2C2

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DanJS
 one year ago
Best ResponseYou've already chosen the best response.1The area is A=pi*r^2, and the Circumference is C=2*pi*r the ansers have pi in them, so solve both Area and Circumference for the radius r

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1then you can set them equal to each other since they will both equal r

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1\[r = \sqrt{\frac{ A }{ \pi }}\] and \[r = \frac{ C }{ 2\pi }\]

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1Set the two right sides equal and solve for A

radar
 one year ago
Best ResponseYou've already chosen the best response.0Is their a correct choice? I think we need\[A=(C ^{2})/(4\pi)\]Am I missing something??

radar
 one year ago
Best ResponseYou've already chosen the best response.0Probably the 2nd option has a typo.
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