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gmatwork
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Geometry concept

by gmatwork Wed Feb 22, 2012 12:43 pm

Which quadrilaterals have opposite angles equal and for which quadrilaterals do diagonals bisect the vertex angles?
tim
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Re: Geometry concept

by tim Sun Feb 26, 2012 5:29 am

if both pairs of opposite angles are congruent, it is a parallelogram; if only one pair is congruent, there is no specific name for such a quadrilateral..

if both diagonals bisect their respective vertex angles, you have a rhombus. if only one diagonal does this, it is called a kite..
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gmatwork
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Re: Geometry concept

by gmatwork Tue Apr 10, 2012 8:44 pm

do diagonals of a parallelogram bisect their respective vertex angles?
tim
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Re: Geometry concept

by tim Tue Apr 17, 2012 7:25 pm

only if that parallelogram is also a rhombus..
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