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Recreational Mathematics
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Demonstrations 61  80 of 1301
Japanese Theorem for Three Tangent Circles and a Triangle
Nonogram from Photo
Theobald's HeptagontoHexagon Dissection
Exact Trilinear Coordinates and the Euler Line
Exact Trilinear Coordinates and the Brocard Axis
Hamiltonian Path on a Polyhedral Net
Two Ways to Fold a Net into a Triangular Dipyramid
Rotation Symmetries of Prisms
Cubes on a Rhombic Hexecontahedron
Icosidodecahedron as a Common Element
Fifteen Great Circles on a Sphere
Cluster of 30 Cubes
Magic Hexagon
A Vertex Distance Relation for Two Triangles
Rational Cyclic Polygons
Seven Points with Integral Distances
The Sum of the Trilinear Coordinates of a Point
Cellular Automata with Modified GameofLife Rules
Rotation Symmetries of Antiprisms
Spirals to the Unit Circle from Trigonometric Series
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