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Topic: Dynamic Geometry Sketches Site Updated
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Michael de Villiers

Posts: 274
Registered: 12/3/04
Dynamic Geometry Sketches Site Updated
Posted: Jun 6, 2013 4:54 AM
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My 'Dynamic Geometry Sketches' site available at: http://dynamicmathematicslearning.com/JavaGSPLinks.htm has been updated with the following:
1) A generalization of a parallelogram theorem to parallelo-hexagons, and Douglas' theorem for polygons. (New)
2) Hierarchical Quadrilateral Tree. (Updated)
3) Van Aubel's theorem and some generalization. (Updated)
4) Some unproved conjectures. (Updated)

For students: Dynamically explore, and make conjectures about the relations between the sides and major diagonals of a parallelo-hexagon and logically explain them at: http://frink.machighway.com/~dynamicm/parm-law-hexagon.html

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