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High School Geometry
Demonstrations 1 - 20 of 304
The Area between Two Circles
New this week
Angle Bisectors of Intersecting Two Lines
Updated this month
Are the Lines Parallel?
Made for
Mathematica
7
The Sum of the Interior Angles of a Triangle Equals 180 Degrees by Paper Folding
Polyhedron Dual
The Statue of Regiomontanus
Folding an Equilateral Triangle in a Square
Enumerating Pythagorean Triangles
Dissecting a Pyramid into Four Equal Pieces
Crisscrossing a Polygon
Problems on Circles VII: Circles of a Given Size Tangent to Other Two
Cartesian Coordinates Exercise
Made for
Mathematica
7
Approximating Pi with Inscribed Non-Regular Polygons
Made for
Mathematica
7
The Eutrigon Theorem
Twin Pythagorean Triples
Made for
Mathematica
7
Sum of Exterior Angles of a Polygon
Archimedes' Approximation of Pi
Area of a Quadrilateral by Triangulation
Albrecht Dürer's Heptagon of 1525
Made for
Mathematica
7
Angle and Length Measurement of a Polygon
Made for
Mathematica
7
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