Use a geometric formula to solve the problem. a square has an area of 81 square meters. find the side length.

Answer: 9 meters

To answer this question you need to know the formula to calculate the area of a square. Square has same side length so the area is: length x length.

Then the calculation would be:

Area = length x length

81m2 = length x length

Length ^2 = 81 m2

Lengtj = √81 m2

Length = 9 meters