Question

How can I find the unknown side lengths when given the area or circumference of a figure?

Answer 1

Set up the area/circumference equations using x as the unknown variable. Then, solve for that variable and apply the correct unit.

Explanation:

For example,

Find the side length of a square with an area of 49 square centimeters.

Since
`area=s^(2)`, i can write
`49=s^2\\then take the square root of each side to solve for s.\\s=√(49) \\s=7 centimeters`