Discussion:  All Topics 
Topic:  Is a rhombus a kite? 
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Subject:  RE: Is a rhombus a kite? 
Author:  aterner 
Date:  May 5 2005 
Eric W. Weisstein. "Kite." From MathWorldA Wolfram Web Resource.
http://mathworld.wolfram.com/Kite.html
My current book (McDougal LittellGeometry Applying, Reasoning and
Measuring)says opposite sides must be different.
I don't think it should be necessary for the opposite sides to be different.
This is another example of great discussion in math class.
I like to discuss concepts to show that math is not just a bunch of rules that
never evolve. We talk about the relative newness of fractal geometry, the many
ways we do proof now that we didn't do when I went to high school in the 60's.
On May 5 2005, Susan wrote:
> I know we had a big discussion about parallelograms, but now I need
> help. Some textbooks (especially the older ones) have rhombii as a
> subset of kites, but the newer ones do not. It seems like the way
> you develop the area formulas make them related. Is a rhomus a kite?
> Is a square a kite? Any ideas? Has it changed over the years, or
> is it just me?
 
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