<PRE><B>Question 156716</B>
S=F-10
T=F+50
F=FIRST SIDE
F+(F-10)+(F+50)=684
3F-10+50=684
3F=684-50+10
3F=644
F=644/3
F=214 2/3 IS THE LENGTH OF THE FIRST SIDE.
214 2/3-10=204 2/3 FOR THE SECOND SIDE.
214 2/3+50=264 2/3 FOR THE THIRD SIDE.
pROOF:
214 2/3+204 2/3+264 2/3=684
682+6/3=684
684=684

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