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Scrat
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Math: Polygons 15 Feb 2010, 18:45
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again, many thanks for this!
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mainhoon
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Math: Polygons 22 Aug 2010, 14:00
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Thanks for the post Bunuel. I have a doubt. Do the diagonals bisect each other in a trapezoid?

Bunuel
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nice post, as usual, Bunuel...

i m becoming a great fan of ur posts...

a small suggestion from my side... in the explanation of trapezoid, the diagram shows bases as a and b and height as h, but in the formula for area you considered different variables, though this doesn't point out any mistake in the formula, it would be clear if u considered the same variables...

with such wonderful posts gmatclub can start its own quant book i suppose.... wow...

i almost forgot.... kudossssssssss..... +1

Thanks. You are right, changed the variables as you suggested. +1 for good suggestion.

As for the quant book: actually we are working on our very own GMAT MATH BOOK. Of course much work has to be done till completing it: this topic isn't finished yet, we are working on Number Theory, other topics are waiting... But at the end we'll hope to get comprehensive guide to the quant topics of GMAT.
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mainhoon
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Math: Polygons 23 Aug 2010, 15:48
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So Bunuel, if it is given that diagonals bisect then is it definitely a parallelogram? in other words it is a necessary and sufficient condition for parallelogram?

what is the difference between a trapezoid and trapezium? do the diagonals bisect in a trapezium?
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Math: Polygons 23 Aug 2010, 19:52
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Thank You.Excellent post.
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Math: Polygons 24 Aug 2010, 01:48
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mainhoon
Thanks for the post Bunuel. I have a doubt. Do the diagonals bisect each other in a trapezoid?

Bunuel
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nice post, as usual, Bunuel...

i m becoming a great fan of ur posts...

a small suggestion from my side... in the explanation of trapezoid, the diagram shows bases as a and b and height as h, but in the formula for area you considered different variables, though this doesn't point out any mistake in the formula, it would be clear if u considered the same variables...

with such wonderful posts gmatclub can start its own quant book i suppose.... wow...

i almost forgot.... kudossssssssss..... +1

Thanks. You are right, changed the variables as you suggested. +1 for good suggestion.

As for the quant book: actually we are working on our very own GMAT MATH BOOK. Of course much work has to be done till completing it: this topic isn't finished yet, we are working on Number Theory, other topics are waiting... But at the end we'll hope to get comprehensive guide to the quant topics of GMAT.
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dear just see the link in Bunuel signatures ....the geometry notes(like other notes )are amazing ....take a print ...read one ce a day ... in a week you will be on top of all the properties
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Math: Polygons 29 Aug 2010, 22:47
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Excellent post. thanks. You are amazing.
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Math: Polygons 30 Aug 2010, 14:23
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excellent ! - thank you +1
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Math: Polygons 05 Oct 2010, 11:59
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Thanks Bunuel for such comprehensive notes.... :)
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Math: Polygons 07 Oct 2010, 20:46
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Hi Bunuel,
Nice post can you extend this by including solid figures also.
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Math: Polygons 08 Oct 2010, 00:33
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mission2009
Hi Bunuel,
Nice post can you extend this by including solid figures also.
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math-3-d-geometries-102044.html
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Sarang
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Math: Polygons 27 Nov 2010, 06:45
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One more masterpiece from Bunuel...... Kudos...!!
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Math: Polygons 08 Feb 2011, 01:14
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RenukaD
Great post , as always!, by Bunuel. Thanks :)
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Great post !!! :clap: THANK YOU
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Math: Polygons 27 Jun 2011, 09:22
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Hi, Super awesome post by the genius again. :thanks

One small doubt. if a DS question talks about a parallelogram and then goes on to say that the diagonals are equal. Does it imply we have a rectangle ?

Further the post says that should the diagonals of a parallelogram be equal and the angles be bisected by it, its a square. But I think this will happen in case of both a rect and a square ?
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Math: Polygons 27 Jun 2011, 09:24
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Hi, Super awesome post by the genius again. :thanks

One small doubt. if a DS question talks about a parallelogram and then goes on to say that the diagonals are equal. Does it imply we have a rectangle ?

Further the post says that should the diagonals of a parallelogram be equal and the angles be bisected by it, its a square. But I think this will happen in case of both a rect and a square ?
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Math: Polygons 02 Jul 2011, 05:14
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many thanks for this !
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Math: Polygons 16 Jul 2011, 00:22
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Great post....Thanks
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Math: Polygons 17 Jul 2011, 05:22
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great post..thanks Bunuel
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Math: Polygons 23 Jul 2011, 20:21
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another awesome post... thanks Benuel
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Math: Polygons 10 Nov 2011, 01:23
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Many thanks!! could find the info only there!! highly appreciate :-D
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Math: Polygons 03 Dec 2011, 13:25
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Amazing post, thank you!
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