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Geometry
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Demonstrations 61  80 of 2871
Paths inside a Polygon
Making a Strip of Isosceles Trapezoids
Guessing the Symmetry Group
Pythagorean Theorem for Regular Polygons
Area of Parallelogram in Terms of Its Diagonals
Fourier Construction of Regular Polygons and Star Polygons
Symmetry of a Mystery Curve
Compound of Tetrahedron and Cube
Construction of Squares from a Parallelogram
Folding a Strip into a Pentagon
Four Visual Proofs of a Theorem about a Regular Nonagon
Tiling a Hexagon
Logistic Model for Population Growth
Exponential Model for Population Growth
The Integraph: An Integrating Mechanism
Bicycle Wheels Using Curves of Constant Width
Polyhedral Playground
Spirals of Squares
Arbitrary Curves of Constant Width
Iteratively Reflecting a Point in the Sides of a Triangle
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