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the triangles formed by two ladders leaning against a wall are similar. how long is the shorter ladder?

the first ladder is 42ft and leans against the wall at 24ft, and the shorter ladder leans against the wall at 8ft.

4 answers

just use a proportion

x/8 = 42/24 = 7/4
4x = 56

carry on...

Amazing work

What’s the answer ?

18

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