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Triangle
Author:
mahler
Triangle Prolem: World's hardest elementary geometry problem
http://ai.stanford.edu/~hdwang/puzzle2.html
problem#6
GeoGebra
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z`]]
Congruent Figures
What Do You See? (2)
Pythagorean Template: Integer Legs
Squares Question
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Hexagons, True or False
Max area of triangle
peta
Centroid
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Quadratic Equations
Cosine
Prism
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