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The ratio of the side lengths of a triangle is 2:3:4.The shortest side is 15 inches.What is the perimeter?
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The ratio of the side lengths of a triangle is 2:3:4.The shortest side is 15 inches.What is the perimeter?

User DHamrick
by
9.3k points

1 Answer

3 votes
For some number
x, the side lengths are
2x,
3x, and
4x.

The perimeter is
2x+3x+4x=9x

The shortest side is
2x=15
So
x=7.5

Plug into
9x:

9*7.5=67.5

So the perimeter is 67.5 inches.
User Kostantinos
by
7.7k points
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