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GMAT Prep / Triangel

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Source: — Problem Solving |
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by hwiya320 » Sat Dec 06, 2008 9:33 am
I just did this test! sigh..

anyways, let's start off with big triangle.

Base = (14,0) and (2,0). Now we know that base is on x-coordinate, therefore 14-2 = 12.

Height of the triangle is (8,12), ycoordinate of 12.

So you have 12 x 12 = 144, then /2 for area of 72.

now, same for small triangle.
base = (10,0) - (6,0) = 4
height = (8,4) = 4
(4x4)/2 = 8

8 to 72
or
1 to 9
Hence, the answer A
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by stop@800 » Sat Dec 06, 2008 10:55 am
Triangle PQR
Base = 4
Height = 4

Triangle LMN
base = 12
ht = 12

ratio of area will be 1:9
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by iamcste » Sat Dec 06, 2008 10:57 am
stop@800 wrote:Triangle PQR
Base = 4
Height = 4

Triangle LMN
base = 12
ht = 12

ratio of area will be 1:9

stop800 where u had been for so long?
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by stop@800 » Sat Dec 06, 2008 12:15 pm
iamcste wrote:
stop@800 wrote:Triangle PQR
Base = 4
Height = 4

Triangle LMN
base = 12
ht = 12

ratio of area will be 1:9

stop800 where u had been for so long?
I was busy with work and other activities :)
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