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
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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.
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