Question

if circle has an area of 25in^2 what would its radius be

Answer 1

what is the formula for the area of a circle?

Answer 2

pi x radius^2

Answer 3

A = pi r^2 ; now we can arrange things about so that we solve for r, correct?

Answer 4

ok

Answer 5

we can divide off a pi and sqrt the whole thing

sqrt(A/pi) = r ; since A = 25 and pi = pi, the rest is just button work

Answer 6

ok thanks

Answer 7

yw