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28 Jun 2004, 10:23
Kudos
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Hey guys,
I have a few triangle issues that keep coming up on my studying. Any help would be greatly appreciated.
1) If I am given a right triangle and given that the hypoteneuse is 5, can I assume that the other sides are 3 and 4 by assuming that it is a Pythagorean triple?. I know that if it is the reverse, and I am given 3 and 4 as sides and I know it is a right triangle, I can assume the hypoteneuse is 5... but I make the assumption given the reverse order of information?
2) If I am given the sides 3 and 4 of a triangle that LOOKS LIKE it has a right triangle, and I need to find the hypotenuese side, can I assume that the hypoteneuse is 5 even if it doesn't say explicitly anything about it having a right angle?
3) Also, are there any Pythagorean triples (2/4/5 - 6/8/10, etc) where I can assume it is a 30-60-90 triangle?
On DS especially, I seem to make a lot of assumptions that prove incorrect (e.g. that I can find a side of a triangle with the info given, when I really cannot), and I just want to make sure I have my rules correct.
Thanks in advance!
I have a few triangle issues that keep coming up on my studying. Any help would be greatly appreciated.
1) If I am given a right triangle and given that the hypoteneuse is 5, can I assume that the other sides are 3 and 4 by assuming that it is a Pythagorean triple?. I know that if it is the reverse, and I am given 3 and 4 as sides and I know it is a right triangle, I can assume the hypoteneuse is 5... but I make the assumption given the reverse order of information?
2) If I am given the sides 3 and 4 of a triangle that LOOKS LIKE it has a right triangle, and I need to find the hypotenuese side, can I assume that the hypoteneuse is 5 even if it doesn't say explicitly anything about it having a right angle?
3) Also, are there any Pythagorean triples (2/4/5 - 6/8/10, etc) where I can assume it is a 30-60-90 triangle?
On DS especially, I seem to make a lot of assumptions that prove incorrect (e.g. that I can find a side of a triangle with the info given, when I really cannot), and I just want to make sure I have my rules correct.
Thanks in advance!
Archived Topic
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 below for a better discussion on this exact question, as well as several more related questions.
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28 Jun 2004, 10:30
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cs77
Of course, no, because there are a lot of other triangles with sides such as (5/sqrt(2), 5/sqrt(2), 5) which have right angle.
cs77
No, unless it is said that the triangle IS right.
cs77
No, because triangle with angles 30-60-90 has one side of irrational length(which is not rational, not a fraction of m/n, where m,n - are integers).
cs77
OK. I think I clarified it well enough.
28 Jun 2004, 14:41
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Thanks very much Emmanuel for clarifying. I have missed a handful of questions because I was confused on what I could assume and what I couldn't. Thks!
Archived Topic
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!
