Question

The area of a circle A is given by the formula A = ∏ r^2, where r is the radius of the circle. Find the radius of a circle with area 16 in.^2. Round to the nearest tenth of an inch.

Answer 1

well you have

\[16 = \pi r^2\]

so its

\[r^2 = \frac{16}{\pi}\]

just take the square root for the answer

Answer 2

?

Answer 3

Ok thank you.