# SOLUTION: What is the circumference of a circle if the area of the circle is 64? My homework gives me 5 choices. 1) 8 2) 16 3) 8 divided by the square root of pie 4)16 times the square r

Algebra ->  Algebra  -> Circles -> SOLUTION: What is the circumference of a circle if the area of the circle is 64? My homework gives me 5 choices. 1) 8 2) 16 3) 8 divided by the square root of pie 4)16 times the square r      Log On

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 Geometry: Circles and their properties Solvers Lessons Answers archive Quiz In Depth

 Question 16753: What is the circumference of a circle if the area of the circle is 64? My homework gives me 5 choices. 1) 8 2) 16 3) 8 divided by the square root of pie 4)16 times the square root of pie 5) 32 times pie Answer by venugopalramana(3286)   (Show Source): You can put this solution on YOUR website!area of the circle is 64...formula for area is pie * r^2 ,where as formula for circumference or perimeter is 2*pie*r..hence area =pie*r^2=64 r^2=64/pie r= =8/ circumference=2*pie*r=2*pie*8/= 16* ...hence 16 times the square root of pie is the answer.