Question 534025
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The formula for the perimeter (P) of a square with sides length S is:<BR>
P = 4S.  Divide both sides by 4 to find the length of a side.<P>

P/4 = S.<P>

In this problem we're given a maximum P (225 inches).  So S must be no bigger than a length that will result in 225 inches.  That is: <BR>
S <= P/4  Which is S <= 225/4.  That gives:  S <= 56.25 inches.<P>

Sides can be any length equal to 56.25 inches, or smaller than 56.25 inches.