Question

If the area of a circle is 36pi what is the circumference of the circle?

Answer 1

12pi

Answer 2

2* pi * r = 2 pi 6 = 12 pi

Answer 3

well, i the formula for the area of a circle is pi*r^2, this means that we have, in thiscase, the radius being 6, since 6 squared is 36. Now simplu plug the radius of 6 into the formula for the circufuremce of the circle, namely 2*pi*r

Answer 4

\[pi * r^2=36 pi\]
\[r^2=36\]
\[r=6\]
\[2*pi*r=2*pi*6=12 pi\]

Answer 5

12*pi

Answer 6

area=pi * r^2
36pi = pi * r^2
r=6

2*pi*r=12pi