Question

The area of a circle is 40 pie (3.14). Find the radius of the circle in simplest form.

Answer 1

Area of a circle equation:
A=(3.14)r^2

40(3.14)=(3.14)*r^2
40=r^2
r= square root of 40

simplified radius is 2 times root 10
(See the photo I attached for the work)