Chapter A.8, Problem 9AYU

To determine

To find: The area of the circle.

Answer to Problem 9AYU

$A=s^2$, $A=\text{area}$, $S=\text{ length of a side}$.

Explanation of Solution

The area of a square is the square of the length of a side.

$A=s^2$, $A=\text{area}$, $S=\text{ length of a side}$.

The simplest (and most commonly used) area calculations are for squares and rectangles. To find the area of a rectangle multiply its height by its width. For a square we need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.