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Proof without Words - Theorem of Thales
Author:
chermann2.10
GeoGebra
What relationship is shown here? Can you use the picture to create a formal proof?
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Dodecahedron
Icosahedron
Poorly Drawn Parallelograms 2
alg2_05_05_01_applet_exp_2_flvs
Icosahedron1
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The First Brocard Point
proof of pythagorean thm.
Cut the figure
Perpendicular bisector
Rectangles in the {Perimeter, Area} plane
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Normal Distribution
Isosceles Triangles
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