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Geometry
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Demonstrations 121  140 of 2899
Folding a Rectangle into an Envelope
Volume of a Polyhedron Given by a Particular Net
Projections of Cubes and HalfCubes
The Obedient Reflected Ray
Dissection of a Square and an Isosceles Right Triangle into a Square
Wythoff's Icosahedral Kaleidoscope
Algorithm for Cubic Nonuniform BSpline Curve Interpolation
Calendar on Dodecahedron
Halving a Triangle
Algorithm for Bicubic Nonuniform BSpline Surface Interpolation
SixAstroid Designs
Saturn's Seasonal Sundial
Another Variant of Kosnita's Theorem
Trilateration and the Intersection of Three Spheres
Regular 2nGon to Rectangles Dissection
The Joukowski Mapping: Airfoils from Circles
NumberTheoretic Construction of Digital Circles
Blood Spatter Trigonometry
Insphere and Four Exspheres of a Tetrahedron
Cylindrical Surfaces from NURBS Curves
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