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 May 23rd, 2012, 10:53 AM #1 Newbie   Joined: Jan 2012 Posts: 22 Thanks: 0 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.
 May 23rd, 2012, 10:58 AM #2 Math Team   Joined: Sep 2007 Posts: 2,409 Thanks: 6 Re: Geometry, triangle question. Since the two lines are parallel, the two triangles have the same angles and so are similar triangles.
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

 May 23rd, 2012, 12:02 PM #4 Global Moderator     Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,852 Thanks: 1077 Math Focus: Elementary mathematics and beyond Re: Geometry, triangle question. $\frac{\bar{AT}}{\bar{TB}}\,=\,\frac{\bar{AV}}{\bar {VC}} \\ \frac57\,=\,\frac{10}{\bar{VC}} \\ \bar{VC}\,=\,14$
 May 23rd, 2012, 12:03 PM #5 Newbie   Joined: Jan 2012 Posts: 22 Thanks: 0 Re: Geometry, triangle question. Okay I got it thank you.
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
5 / 12 = 10 / (10 + x)

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