Question

what is the length of one side of 400 sq in

Answer 1

This is a square, and so all the sides will be the same measurements. Note that you are given an area, so you'll have to root the total area to get a side.

√400 = 20

One side's measurements is 20 in

hope this helps

Answer 2

It's a square, so

A = b * h or l²

l = √A

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l = √400

l = 20 in