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Recreational Mathematics
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Demonstrations 621  640 of 907
Sections of the 16Cell
Overhanging Cards
Hinged Dissections: From Equilateral Triangle to Square
Equilateral Triangle to Square
Spirals!
Moving the Vertices of the Great Rhombicuboctahedron
Dissection of Two Stellated Dodecahedra
NoFourInPlane Problem
Intrinsically Knotted Graphs
The Ulam Prime Spiral
Hecks Boards
Dissecting a Rhombic Dodecahedron into Two Solids
What Color Is the Bear?
Symmetric Compositions of Rhombic Dodecahedra of the Second Kind
The FourRunner Problem
Cumulation
Decomposing a Rhombic Dodecahedron into a TrapezoidRhombic Dodecahedron
Dissecting Two Rhombic Dodecahedra of the Second Kind into a Cube
Three Ways to Fold a Net of Eight Triangles
Octahedral Vase
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