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Joined: 09 Jul 2007

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traingle [#permalink]

30 Aug 2007, 14:21

Traingle help

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Joined: 10 Jun 2007

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Re: traingle [#permalink]

30 Aug 2007, 15:28

Ravshonbek wrote:

Traingle help

Good one. Answer is 10.

You need to look at the triangle differently.
Put vertex A on top, B and C on bottom.
Then you see that the base of triangle ABC = 3
So, using the area formula:
(1/2)*h*3 = 30
h = 20

This height happens to be the same for triangle ADC and its base is 1
Area ADC = 1/2 * 1 * 20 = 10

Re: traingle [#permalink] 30 Aug 2007, 15:28

		Similar topics	Author	Replies	Last post
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	1	Traingle Sides	study	1	25 Oct 2009, 11:39
	2	Traingles	abhi398	11	28 Sep 2011, 14:37

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