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Trapezoid Proof (Posted on 2008-04-17) Difficulty: 3 of 5
Two opposite sides of a quadrilateral are the same length. The diagonals of the quadrilateral are also the same length. Prove the quadrilateral is a trapezoid.

No Solution Yet Submitted by Brian Smith    
Rating: 2.5000 (2 votes)

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Some Thoughts re(2): Solution | Comment 3 of 4 |
(In reply to re: Solution by Gamer)

I believe it can not be proven that the quadrilateral is a trapezoid without further stipulations...

  1. the definition of trapezoid is the North American definition
  2. the quadrilateral is not a self-intersecting quadrilateral

  Posted by Dej Mar on 2008-04-17 22:48:42
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