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High School Geometry
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Demonstrations 21 - 40 of 308
Spoked Wheel
Stairs from Cube
Rhombic Triacontahedron Built on a Cube
Polygon Spirals
A Device that Illustrates Pythagoras' Theorem
Five Circles and the Golden Ratio
Folding an Octahedron from Squares
Fractal Tetrahedron
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
Angle Bisectors of Two Intersecting Lines
Eratosthenes's Measure of the Earth's Circumference
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