It is a square, so you simply need the square root of 2,100 = 45.8257569.
If it were a cube, you would use the cube root.
OK. Area of a rectangle is length times width. (L*W)
as rectangle here is a square, L=W.
therefore the lewngth of one side is the square root of 2,100.
Regretfully I can’t find my calculator to give the answer.
Hope this helps, though.
Area of a rectangle = l*w
for a square, l=w
so the area = l*l (or l^2)
l^2 = 2100
take the square root of both sides
l = 45.826
Use the Area of a Square formula.
To see a short video that teaches how to use this formula, with examples, click here: