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Geometry
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Demonstrations 2281  2300 of 3611
Two Visual Proofs of a Basic Trigonometric Identity
SelfAvoiding Paths through a Lattice
Fonctions affines (French)
Noncoplanar Lines
Two Lines Perpendicular to the Same Plane
Line through a Given Point on a Given Plane Perpendicular to the Plane
Line Perpendicular to Two Intersecting Lines
Squares of Sine and Cosine
Enveloping the Oloid
Segment Intersection
Necker Cube: A Variation
Generating a Hyperboloid by Rotating a Line
Regular Polygon Maker
Dissection Proof of the Addition Formula for Sines
FermatWeber Point of a Polygonal Chain
Two Types of Hexagonal Polyominoes Counted by Area and Number of Columns
Lines from a Point to All the Points of a Circle
How Many Right Triangles Can You Find?
The Medians of a Triangle Divide It into Three Smaller Triangles of Equal Area
Dissection of a Pentagon to Almost a Square
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