Question 121608
LONGEST SIDE (C)=(A+B-4)
SHORTEST SIDE (A)=4+(A+B-4)-B
THE THREE SIDES ARE:(C)(A+B-4), (A)[4+(A+B-4)-B & (B)
40=A+B-4+4+A+B-4-B+B
40=2A+2B-4
2A+2B-4-40=0
2A=2B-44=0
2(A+B-22)=0
A+B-22=0
A+B=22
C=(A+B)-4
C=22-4
C=18 CM IS THE LONGEST SIDE.