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Geometry
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Demonstrations 2261  2280 of 2730
Frenet Frame
Dividing a Right Triangle by the Altitude to the Hypotenuse
Dissection of a Triangle to Its Mirror Image II
Dissection of a Triangle to Its Mirror Image I
Lindgren's TwoTrianglestoOne Dissection
Quadrilateral Slide
Bradley's TwoTrianglestoOne Dissection
The Area of a Triangle as Half a Rectangle
Inscribed Angles That Intercept the Same Arc
Duals by Rotating the Edges of Polyhedra
Interactive Rings Tessellation
Loyd's TwoGreekCrossestoaSquare Dissection
Pappus Chain
Circle Images
Witch of Agnesi
Nets of Polyhedra
Poincaré Hyperbolic Disk
Spieker Center Triangle Construction
Gerling's 12Piece Dissection of an Irregular Tetrahedron into Its Mirror Image
Tangent Circles
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