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bmwhype2
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Right triangle ABC has a height BD, What is the value of AB 13 Nov 2007, 10:20
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Right triangle ABC has a height BD, What is the value of AB times BC?

1. AB is equal to 6
2. The product of the non hypotenuse sides is equal to 24



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Right triangle ABC has a height BD, What is the value of AB 13 Nov 2007, 10:31
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Answer is B.

Statement I alone is not sufficient as it tells us nothing about BC.

If BD is the height of a right angled triangle ABC, the right angle has to be at vertex B. If the right angle is at vertex B, sides AB & BC will be the non-hypotenuse sides.

Statement II gives us the product of the non-hypotenuse sides i.e. AB and BC.
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Right triangle ABC has a height BD, What is the value of AB 13 Nov 2007, 10:33
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bmwhype2
Right triangle ABC has a height BD, What is the value of AB times BC?

1. AB is equal to 6
2. The product of the non hypotenuse sides is equal to 24
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what if BD coincides with BA?
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Right triangle ABC has a height BD, What is the value of AB 13 Nov 2007, 10:42
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Ravshonbek
bmwhype2
Right triangle ABC has a height BD, What is the value of AB times BC?

1. AB is equal to 6
2. The product of the non hypotenuse sides is equal to 24

what if BD coincides with BA?
Show more


Hmm..you are suggesting that D and A are the same points...I concede it is a very valid point that I totally missed but wonder if I would have let that possibility alter my solution in the actual GMAT. I guess i might have still put my money on B and got it wrong.

Whats the OA, bmwhype2?
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Right triangle ABC has a height BD, What is the value of AB 13 Nov 2007, 11:47
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"If BD is the height of a right angled triangle ABC, the right angle has to be at vertex B."

just wondering how come this is so. why couldnt B be at the top of the triangle instead of at the right angle.
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Right triangle ABC has a height BD, What is the value of AB 13 Nov 2007, 20:48
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"If BD is the height of a right angled triangle ABC, the right angle has to be at vertex B."

just wondering how come this is so. why couldnt B be at the top of the triangle instead of at the right angle.
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An assumption that i did not know i had made till ravshonbek pointed it out was that A & D are distinct points. If A & D are distinct points, you will find that if BD is the height of a right angled triangle, the right angle will always be at point B. If it were at any other point ( say A or C ), then BA or BC would be the height and BD would have to coincide with one of them.
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Right triangle ABC has a height BD, What is the value of AB 22 Nov 2007, 03:11
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Ravshonbek
bmwhype2
Right triangle ABC has a height BD, What is the value of AB times BC?

1. AB is equal to 6
2. The product of the non hypotenuse sides is equal to 24

what if BD coincides with BA?

Hmm..you are suggesting that D and A are the same points...I concede it is a very valid point that I totally missed but wonder if I would have let that possibility alter my solution in the actual GMAT. I guess i might have still put my money on B and got it wrong.

Whats the OA, bmwhype2?
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yes, i was wondering the same thing. how we would know which is the right angle?

OA is B.
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Right triangle ABC has a height BD, What is the value of AB 22 Nov 2007, 03:23
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https://www.urch.com/forums/517515-post2.html



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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!