Question

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

Answer 1

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