Question

Dan built a square patio with an area of 80 feet². Estimate the length of each side of the patio to the nearest tenth.

Answer 1

Let l be the length of the patio, since the area is 80 feet² we get that:

`l^2=80ft^2\text{.}`

Solving the above equation for l we get:

`l=\sqrt[]{80ft^2}\approx8.9ft.`

Answer: 8.9 feet.