Question

A square field has an area of 479ft^2. What is the approximate length of a side of the field? Give your answer to the nearest foot. Explain your response. PLZ HELP

Answer 1

For any square the area is given by
`A=s^(2)` where
`s` is the length of one side. (This comes from the general rectangle formula
`A=lw` with
`l=w=s`).

To solve for
`s` we take the square root of both sides:

`A=s^(2)`

`√(A)=\sqrt{s^(2)}`

`s=√(A)`

Now we can substitute known values:

`s=√(A)`

`s=√(479)`

`s=21.886068 \approx 22feet`