Question

Find the exact area of a circle with a diameter of 12 in., expressed in terms of n.361 square inches61 square inches14471 square inches12 square inches241 square inches< Previous

Answer 1

The area of a circle is given by:

`A=\pi r^2`

Since the radius is half the diameter we have that r=6. Then the area is:

`A=\pi(6)^2=36\pi`

Therefore, the answer is the first one.