SOLUTION: The side of a rectangle are in ratio of 12:13:15. The perimeter is 120cm. Find the lengths of the sides of the triangles?

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Question 342658: The side of a rectangle are in ratio of 12:13:15. The perimeter is 120cm. Find the lengths of the sides of the triangles?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
12x%2B13x%2B15x=120
40x=120
x=3
12x=36
13x=39
15x=45
The sides are 36 cm, 39 cm, and 45 cm.