SOLUTION: The ratio of the side lengths of a triangle is 4:7:9. The perimeter of the triangle is 120 feet. Find the side lengths. Then classify the triangle by its side lengths.

Question 951688: The ratio of the side lengths of a triangle is 4:7:9. The perimeter of the triangle is 120 feet. Find the side lengths. Then classify the triangle by its side lengths.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The ratio of the side lengths of a triangle is 4:7:9. The perimeter of the triangle is 120 feet. Find the side lengths. Then classify the triangle by its side lengths.
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4:7:9 is the same as 4x:7x:9x
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Equation:
4x + 7x + 9x = 120
20x = 120
x = 6
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4x = 24
7x = 42
9x = 54
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Classify::
54^2 > 24^2+42^2
Obtuse Triangle
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Cheers,
Stan H.
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