# The area of a circle is 49pi. find the circumference of the circle in terms of pi

1
by kcish

## Answers

2016-04-27T22:20:10+08:00
area of circle   =   pir²     =    49pi
pi r²    49pi
r² =   49 pi/pi
r²    =    49         r =√49   =   7
circumference of circle   =    2pi r
=   2pi * 7
=  14pi
therefore the circumference of the circle in terms of pi    =   14pi
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