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distinct points A, B, C , and D

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distinct points A, B, C , and D

by pesfunk » Fri Apr 15, 2011 9:27 pm
If distinct points A, B, C , and D form a right triangle ABC with a height BD , what is the value of AB times BC ?

1) AB=6
2) The product of the non-hypotenuse sides is equal to 24

[spoiler]OA is B but I don't get how !![/spoiler]
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Source: — Data Sufficiency |
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by vineeshp » Fri Apr 15, 2011 10:24 pm
right triangle ABC with a height BD. This information tells us that the right angle is at B. This is because if the right angle is at A or C, then BD cannot be the height. The Line from B to the right angle will itself be the height.

So the only way a distinct point D can become the height is if the right angle is at B.

1) Not sufficient. AB is given but no BC.
2) Product of two non hyp sides: angle is at B. So non hyp sides are AB and BC. Sufficient.
Vineesh,
Just telling you what I know and think. I am not the expert. :)
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by vineeshp » Fri Apr 15, 2011 10:26 pm
All the best for your test. :)
Take it easy. Thats the most important thing on this test. Learnt it the hard way. :)
Vineesh,
Just telling you what I know and think. I am not the expert. :)
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