Question

Jenny wants to build a square deck that is attached to the back of her house.Because the deck will be square, each side of it will be equal in length to the back ofJenny's house. When Jenny's deck is finished, its area will be 324 ft? What is the lengthof the back of Jenny's house?

Answer 1

Jenny's deck is a square deck and has a side length equal to that of the back of Jenny's house. The area of a square of length L is;

`A=L^2`

Thus, we have;

`\begin{gathered} L^2=324ft^2^{} \\ L=\sqrt[]{324} \\ L=18ft \end{gathered}`

Therefore, the length of the back of Jenny's house is 18 feet.