My Math Forum Rhombus Name

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 September 13th, 2011, 11:36 AM #1 Senior Member   Joined: Mar 2011 Posts: 105 Thanks: 0 Rhombus Name My brother has an assignment like it gave a shape like a rhombus <>, and it asked to tell two names and then he did trapezoid and rhombus... what's wrong with this? His teacher said it's quadrilateral and rhombus.... But I think the answer can be either his or her answer, right? Because trapezoid is a quadrilateral with only one pair of parallel sides... and the rhombus already has one pair of parallel sides also.
 September 13th, 2011, 11:38 AM #2 Global Moderator     Joined: Nov 2009 From: Northwest Arkansas Posts: 2,766 Thanks: 4 Re: Rhombus Name A trapezoid has exactly one pair of parallel sides. A rhombus has two.
September 13th, 2011, 01:09 PM   #3
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Re: Rhombus Name

Quote:
 Originally Posted by The Chaz A trapezoid has exactly one pair of parallel sides. A rhombus has two.

Thank you so much, Mr. The Chaz.

Because I searched on Wikipedia.com... they tell it's kind of ill-defined... some books tell at least one pair of parallel sides, some books tell exactly one pair of parallel sides. It depends on the book that the student learns... but I know it's nonsense.

Thank you.

 September 14th, 2011, 12:05 AM #4 Global Moderator   Joined: Dec 2006 Posts: 20,635 Thanks: 2080 It would also be a parallelogram and a kite.

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