### 4 Answers

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: