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May 23rd, 2012, 10:53 AM   #1
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Geometry, triangle question.

Here is the link to the problem
it's problem number 3 ->>> http://www.nysedregents.org/Geometry/81 ... xam811.pdf

I don't know how to solve it.
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May 23rd, 2012, 10:58 AM   #2
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Re: Geometry, triangle question.

Since the two lines are parallel, the two triangles have the same angles and so are similar triangles.
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May 23rd, 2012, 11:42 AM   #3
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Re: Geometry, triangle question.

Quote:
Originally Posted by HallsofIvy
Since the two lines are parallel, the two triangles have the same angles and so are similar triangles.
I still get the wrong answer... I think I'm doing it wrong.
I get this:
5 / 12 = 10 / x
x = 24
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May 23rd, 2012, 12:02 PM   #4
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Re: Geometry, triangle question.

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May 23rd, 2012, 12:03 PM   #5
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Re: Geometry, triangle question.

Okay I got it thank you.
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May 23rd, 2012, 12:08 PM   #6
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Re: Geometry, triangle question.

Quote:
Originally Posted by fishsticks1907
I get this:
5 / 12 = 10 / x
x = 24
You had right idea...
5 / 12 = 10 / (10 + x)
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