Question

How do you find the radius of a circle if its area is 706.9 square millimeters

Answer 1

The answer is R=15

Hope this helps

Answer 2

So the area of a circle formula is $\pi$r^2 
so...
706.9=pi r^2, i want to get rid of pi, get the r isolated 
225.01=r^2
so now we square root
15.0000
:)