## anonymous 5 years ago the area of a circle is 380 sq inches find the radius

1. anonymous

What is the equation which relates circular area to the radius?

2. anonymous

area = pi X radius squared

3. anonymous

ok, so. $A = \pi r^2$ $A = 380$ $\pi r^2 = 380$ $r^2 = \frac{380}{\pi}$ $r = ?$

4. anonymous

10.99?

5. anonymous