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Triangles
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Demonstrations 1  20 of 471
Construction for Three Vectors with Sum Zero
New this month
An IMO Triangle Problem
Maximal Unit Lengths in 3D
Fair Sharing of an Equilateral Triangular Pizza
Spherical Triangle Solutions
Wheels of Powered Triangles
Rational Distance Problem
Triangle Radicals
Congruence Classes of Geoboard Triangles
Triangle Altitudes and Circumradius
Folding a Strip to Converge to an Equilateral Triangle
Arbitrary Curves of Constant Width
Iteratively Reflecting a Point in the Sides of a Triangle
Halving a Triangle
Another Variant of Kosnita's Theorem
Trisecting an Angle Using the Cycloid of Ceva
How Many Triangles in a SixPointed Star?
Spherical Pythagorean Theorem
Repeatedly Subdividing Triangles through Special Points
Halving a Triangle Perimeter
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