The area of a square sandbox is 83 square feet. To the nearest foot, what is the perimeter of the sandbox ?

Question

This question replates to real numbers. 

 

Answer 1

The key to this question is the shape of the sandbox - a square! Squares have four equal sides, and the area formula of a square is: a=s² where s represents the length of the side. Thus, 83 = s². 

 

Taking the square root of each side: 9.11(approx) = s where 9.11 is the square root of 83. (Notice how this is close to 9 since the square root of 81 is 9.)

 

Since each side is 9.11, the perimeter is 9.11 + 9.11 + 9.11 + 9.11 or 4(9.11). Notice this is approximate only since we rounded. To the nearest foot, the answer is 36 feet.