A square wall tile has an area of 58,800 square millimeters. between which two measurements is the length of one side

As you know, all the four sides of a square has equal length

To find the area of square you need this : A = a² (A - area and a is the lenght of sides).

As we do not know the length but we already have the area from the task, here is solution for one side of the square:

We just need to get the square root of the area:

A = a²

4220 = a²

√4220 = √a²

a = 64.9615271

Do hope you still need the answer because this one is 100% correct.