Max is a circus dog. His main trick is jumping through a hoop. Lately, however, Max has gained a little weight and completing his stunt has become increasingly difficult. In order to be guaranteed to make it through the hoop, the diameter of his belly must be 2 in less than the diameter of the hoop. If the hoop has an area of 25π in2, what is the largest diameter Max's tummy can reach without endangering his act?

Question

anonymous · Answer

do you know what the area of a circle is?

anonymous · Answer

no just the area

anonymous · Answer

what?

anonymous · Answer

If the hoop has an area of 25π in2

anonymous · Answer

do you know what the formula for the area of a circle is?

anonymous · Answer

A=pie*r^2

anonymous · Answer

so to find the diameter you need to find the radius 
25pi=pi*r^2

anonymous · Answer

divide by pi

anonymous · Answer

@J.L. THANKS

anonymous · Answer

then square root the number and double it