What is the exact area of a circle with a radius of 12.5 m?

25[tex] \pi [/tex] m2

78.5[tex] \pi [/tex] m2

156.25[tex] \pi [/tex] m2

490.625[tex] \pi [/tex] m2

Respuesta :

pi * 12.5^2 = 156.25*pi.

the formula for area of a circle is A = π*r^2

in your case, r = 12.5

so A = π (12.5)^2 = 156.25π 

hope that helps :)