SOLUTION: the perpendicular sides of a right-angled triangle have lengths in the ratio 3:4. The perimeter of the triangle is 168cm. Find the lengths of the sides.

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Question 1117750: the perpendicular sides of a right-angled triangle have lengths in the ratio 3:4. The perimeter of the triangle is 168cm. Find the lengths of the sides.
Answer by josgarithmetic(39613) About Me  (Show Source):
You can put this solution on YOUR website!
3%5E2%2B4%5E2
9%2B16
25
5%5E2
This right triangle has sides in a ratio of 3:4:5.

x, a common factor
3x%2B4x%2B5x=168
12x=168
x=14


Side lengths:
42, 56, 70