SOLUTION: a triangles perimeter is 40cm the longest side is three times as long as the middle side and the shortest side is 5cm shorter then the middle how long is each side

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Question 232287: a triangles perimeter is 40cm the longest side is three times as long as the middle side and the shortest side is 5cm shorter then the middle how long is each side
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
P=a+b+c
40=3b+b+b-5
5b=45
b=9 cm
3b=27 cm
b-5=4 cm