Question 970519
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{{{B[1]}}}=Shorter Base=10 inches; {{{B[2]}}}=Longer Base=11 inches; P=perimeter=85 inches; {{{S[1]}}}=Side 1; {{{S[2]}}}=Side 2=Side 1
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{{{P=B[1]+B[2]+S[1]+S[2]}}} Substitute {{{S[2]=S[1]}}}
{{{85in=10in+11in+S[1]+S[1]}}} Subtract 21 inches from each side
{{{64in=2S[1]}}} Divide each side by 2.
{{{32in=S[1]}}} Side 1 is 32 inches.
ANSWER: Since the sides are equal, both sides are 32 inches