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# Math: Triangles

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Manager
Joined: 06 Apr 2011
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22 Jul 2011, 22:59
Thanks Bunuel ... kudos...

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20 Aug 2011, 07:05
Bunuel wrote:
A right triangle can also be isosceles if the two sides that include the right angle are equal in length (AB and AC in the figure above)

Shouldn't that be CB and AC?

Great material. Thanks for the compilation.

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Manager
Status: SC SC SC SC SC.... Concentrating on SC alone.
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GMAT Date: 12-30-2011

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04 Nov 2011, 10:23
Bunnel great post.

But i have one qstn. Isnt it too much information about triangles from GMAT perspective. Or is it necessary to grab all the concepts put up.
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D- Day December 30 2011. Hoping for the happiest new year celebrations !

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Kudo me if the post is worth it

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08 Nov 2011, 22:45
I LOVE GMATCLUB!!!!!

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13 Nov 2011, 23:16
great job! thank you for posting the problems related!

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27 Dec 2011, 00:03
Awesome... thats what i needed..

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Manager
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05 Mar 2012, 04:38
Bunuel, you posted this in 2009. It's 2012 now and I am finding this so useful. Talk about leaving behind a legacy. you deserve a nice, large, value-saver family pack of Kudos!
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Manager
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05 Mar 2012, 04:49
Yup, I have been going through each section of the Math Book since morning!
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Manager
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05 Mar 2012, 09:17
Has a similar project been done for Verbal? I have Whiplash's CR material. (The one with the pretty cover and ZOMG! ZOMG! ZOMG! written on it). Has somebody put together a similar core-concepts book for Verbal?
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06 Mar 2012, 22:41
excellent & very useful one

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21 Mar 2012, 06:57
I WANT TO CALCULATE THE AREA OF A TRIANGLE WHOSE MEDIANS ARE GIVEN 12 CM 9 CM AND 6 CM

Posted from my mobile device

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Manager
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21 Mar 2012, 09:47
Let me just say that you sir, are awesome.

Small error here I think :"A right triangle inscribed in a circle must have its hypotenuse as the diameter of the circle. The reverse is also true: if the diameter of the circle is also the triangle’s hypotenuse, then that triangle is a right triangle.

Wouldn't it make more sense to say "if the diameter of the circle is one of the sides of a triangle inscribed in a circle, the triangle is a right triangle"? Calling the diameter a hypotenuse suggests that we already know that it's a right triangle.

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28 Oct 2012, 06:31
Does GMAC test trignometry? for example - could we expect such problem?

Solve the triangle below for angle x and then compute the area of the triangle.

Say a triangle ABC with angles A, B and C with opposite sides to these angles a,b, and c respectively. a = 5 inches and b = 3 inches and angle A = 75 degrees find B =?

Thanks!
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Thanks and Regards!

P.S. +Kudos Please! in case you like my post.

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Manager
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15 Nov 2012, 04:40
Quote:
• To find the base given the leg and altitude, use the formula:

• To find the leg length given the base and altitude, use the formula:

• To find the altitude given the base and leg, use the formula: (Where: L is the length of a leg; A is the altitude; B is the length of the base)

What is 'leg' of an isosceles triangle?
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28 Dec 2012, 09:30
This is just awesome Bunuel...Thanks a lot for making the theory of one of the most important parts of GMAT Math readily available...

Could you please let me know that whether do we have any sort of thread that contains all Geometry 700+ problem collections in the forum ?

BTW,you sig. I guess,does not contain any specific Geometry problem set..Please confirm whether I'm correct.

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29 Dec 2012, 04:21
debayan222 wrote:
This is just awesome Bunuel...Thanks a lot for making the theory of one of the most important parts of GMAT Math readily available...

Could you please let me know that whether do we have any sort of thread that contains all Geometry 700+ problem collections in the forum ?

BTW,you sig. I guess,does not contain any specific Geometry problem set..Please confirm whether I'm correct.

Check here: ds-question-directory-by-topic-difficulty-128728.html and here: gmat-ps-question-directory-by-topic-difficulty-127957.html
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29 Dec 2012, 06:21
Bunuel wrote:
debayan222 wrote:
This is just awesome Bunuel...Thanks a lot for making the theory of one of the most important parts of GMAT Math readily available...

Could you please let me know that whether do we have any sort of thread that contains all Geometry 700+ problem collections in the forum ?

BTW,you sig. I guess,does not contain any specific Geometry problem set..Please confirm whether I'm correct.

Check here: ds-question-directory-by-topic-difficulty-128728.html and here: gmat-ps-question-directory-by-topic-difficulty-127957.html

Well,that's the directory..have seen that already..but they contain the links of all the PS and DS problems submitted in the forum by all the forum members.But actually I was looking for specific Geometry problem set created by experts...like other problems in your signature.So,could you please share any such specific links,if any?

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05 Feb 2013, 07:17
I think formula for Ratio of Area of triangles to the side must also be added...............

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11 Jul 2013, 00:06
Bumping for review*.

*New project from GMAT Club!!! Check HERE

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04 Feb 2014, 08:05
Hello Bunuel, I have downloaded the math book and it is simply amazing. Really awesome power packed PDF! Very helpful, I wish I came across this site much earlier.

I am currently going through Triangles and I have a small doubt regarding Median and angle bisector. In angle bisector section you mentioned that "each point of any angle bisector is equidistant from the sides of the triangle",
By extension can I say that the point at which the angle bisector intersects the opposite side is that side's midpoint? And therefore an angle bisector is the median?
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Re: Math: Triangles   [#permalink] 04 Feb 2014, 08:05

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