A square has four even sides and the perimeter is equal to the sum of all of the sides. P = s + s + s + s = 4 s So we can evaluate the equation for P and then solve for s. 78.4 = 4 s 4 78.4 = s s = 19.6 in
The perimeter of the square is 78.4 inches, and the length of each side is 19.6 inches.
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