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Triangles
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Demonstrations 1  20 of 461
Spherical Pythagorean Theorem
New this week
Repeatedly Subdividing Triangles through Special Points
Updated this week
Halving a Triangle Perimeter
New this month
Some Polyhedra with Identical Triangular Faces
Octahedra Constructed from Eight Identical Triangles
NonEuclidean Triangle Continuum
Doubling a Distance with a Compass
Maximize the Number of Vertices in an Equilateral Triangular Lattice
Trisecting an Angle Using the Cycloid of Ceva
Triangulating Random and Regular Polygons
Wheel Graphs with Integer Edges
Area of a Triangle in the Poincaré Disk
Triangle Altitude
Spherical Triangle Solutions
Japanese Theorem for Cyclic Polygons
Radial Tiling
Rotating Pythagoras
The Pedal and Antipedal Triangles
Exact Trilinear Coordinates
Orthologic Triangles
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