a square sandbox in Trisha's backyard has an area of 81 square feet. Find x, the diagonal length of the sandbox.

Answer 1

Olivia,

Hi! The square sandbox has two legs of 9 feet because 9 times 9 is 81. If you square the two legs and add them together, you will get the hypotenuse squared - 81 + 81 = 162. Take this number of 162 and find the square root, which is approximately 12.73 rounded to the nearest hundredth. This is the hypotenuse and therefore the diagonal of the sandbox. I hope that this helps.

Best to you,

Don M.