Question

What is the circumference of a round pizza with an area of 36 square inches?

Answer 1

Knowing that your area is:
`A= \pi r^(2)=36 in^(2)` you can find the radius as:

`r= \sqrt{ (36)/( \pi ) } =3.4 in`;
With this you can evaluate the circumference as:

`C=2 \pi r=2*3.14*3.4=21.3 in`