Question

If the circumference of a circle is 50pi , calculate the area of the circle.

Answer 1

A=pi*r^2

Answer 2

i think that its 25pi but im not sure

Answer 3

circumference = 2pi*r =50pi
2r=50
r=25

area=pi*r^2 = pi*25^2

Answer 4

P=50pi=2pir--->r=25
A=25^2pi=625pi

Answer 5

50p/2=r

Answer 6

50p/2r2

Answer 7

25p/2

Answer 8

p*252

Answer 9

the forumla for the area of the circle is \[C=2\pi r\] rearrange for the radius, \[r = C/2\pi\], plug the values and you get radius 25.
now the area of the circle can be calulcated as
\[A=\pi r^2 = \pi 25^2 = 1963.49 m^{2}\]