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Geometry
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Demonstrations 3321 - 3340 of 3914
Dissecting a Dodecagram into Two Hexagrams
Dissecting a Dodecagram {12/2} into a Hexagram {6/2}
Parametric Necklace
Barrow's Inequality
Three Polyhedra with Rectangular Nets
Lindgren's Dissection of a Pentagram into a Decagon
Folding and Unfolding Polyhedral Nets
Dissecting a Hexagram into Three Hexagrams
Dissecting a Dodecagram into a Triangle
Dissecting a Decagram {10/4} into Two Decagons
The Taylor Circle
The Circumcircles of Four Triangles
Polyhedra with Prismatic Symmetry
Hyperbolic Paraboloid Embracing an Elliptic Paraboloid
A Congruent Angle inside the Incircle
The Area of a Triangle inside the Incircle
The Radii of Four Incircles
A Relation between Altitudes of Four Triangles
A Relation between the Contact Triangles of a Triangle
Camera Animations on Circles, Spirals, Helices, and Conical Spirals
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