Question

The area of a circular table cloth is 1,384.74 inches square. Using 3.14 for LaTeX: \pi

π

, what is the radius of the circle?

Answer 1

radius = 21

circumference = 138.88

Explanation:

First divide the area by 3.14, this equal 441

441 is your radius squared.

Then you have to find the root of 441 which is 21.

radius = 21

diameter = twice the radius or 2 * radius

diameter = 21 * 2 = 42

diameter = 42

Then plug 42 in your circumference formula.

Which is then C = 3.14(42).

Which means the circumference is 131.88.