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High School Geometry
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Demonstrations 41  60 of 309
Triangle to Parallelogram
Tangent Circle and Arbelos
Unfolding a Dodecahedron to Produce a Stage
Tube Made of Segments
Splitting a Cube
Spoked Wheel
Rhombic Triacontahedron Built on a Cube
Polygon Spirals
A Device that Illustrates Pythagoras' Theorem
Five Circles and the Golden Ratio
Crane Model
Cogwheel Drive
Dissecting a Pyramid into Four Equal Pieces
How Far Can One See from a Height?
Monte Carlo Estimate for Pi
Pythagorean Theorem
Regular Polygon Maker
How Many Rectangles Are There?
Euclid, Book 3, Proposition 22
Difference Formula for Cosine
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