Question 1024722
Shortest side:A
Other side:B and B= 2A
Third side:C and C= A+19
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A+B+C = 159 Substitute for B and C
A+2A+A+19 = 159
4A = 140
A = 35 this is your shortest side. Then:
B = 35(2) = 70
c = 35+19 = 54