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## anonymous 5 years ago The circumference of a circle is 4pi m^3n%5 cm. What is the area of the circle?

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1. amistre64

$C = 2pi \ r$might be helpful

2. anonymous

2m^3n^5 cm2

3. amistre64

$A = pi\ r^2$ putting these together, maybe: $A = pi * (\frac{C}{2pi})^2$

4. anonymous

would it be that ?

5. amistre64

i dunno what you wrote, but if you can fit it into the formula that might work

6. anonymous

4pi m^6n^10 cm2 would be the answer?

7. amistre64

$A=\frac{C^2pi}{2^2pi\ pi}$ $A=\frac{C^2}{4pi}$

8. Hero

$A=\frac{C^2}{4 \pi}$

9. anonymous

ok got it thank you for your patience!

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