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Izidor Hafner
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Demonstrations 121  140 of 1299
Space Filling with Two Bilinski Dodecahedra and Four Obtuse Golden Rhombohedra
Polygonal Sudoku
Dissecting a Rectangular Solid into an Obtuse Golden Rhombohedron and Half a Bilinski Dodecahedron
Dissection of Two Squares into Three Squares
Symmetric Independent Families of Four Isosceles Triangles
Nets for Cowley's Dodecarhombus and Related Solids
Families of FourPoint Touching Equilateral Triangles
Matching Symmetries of 3D Figures
Grünbaum's Venn Diagram
Families of FourPoint Touching Squares
Families of TwoPoint Touching Squares
Two Convex Polyhedra Unfolding to the Same Net
Dissection of Two Squares into Three Congruent Squares
Dissection of a Square into Three Squares
Golden Ratio by Paper Folding
Ellipse by Paper Folding
Dissecting a Cube into an Acute Golden Rhombohedron and ThreeQuarters of a Bilinski Dodecahedron
Dissecting a Cube into a Golden Acute Rhombohedron and Three Congruent Rectangular Solids
Bradley's Triangles for a 345 Triangle
Loyd's Squares for a 345 Triangle
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