Question

The area of the square is 100 square centimeters. What is the area of the circle?

Answer 1

area of the circle: 78.55 centimeters

Answer 2

`length \: of \: 1 \: side = diameter`

`area \: = {l}^(2) \\ 100 = {l}^(2) \\ √(100) = l \\ l = 10`

`diameter = 2 * radius \\ 10 = 2 * radius \\ radius = 5`

`circle \: area = pi * {r}^(2) \\ circle \: area = 3.142 * {5}^(2) \\ circle \: area = 3.142 * 25 \\ circle \: area = 78.55 {cm}^(2)`