College Geometry Online, eLearning

Online Geometry: Classical Theorems of Euclidean Geometry - Table of Content

Classical Theorems - Page 4

Geometry Problems 171-180

Lemoine Theorem

Adams' Circle Theorem
 

Langley's Problem Adventitious angles. 20 isosceles triangle with animation.
 

Mascheroni Construction with compass alone. Midpoint of a segment.

de Gua's theorem

Geometry Problem 800: de Gua's Theorem
Pythagorean theorem in 3-D, Tetrahedron, Cubic Vertex, Triangular Pyramid, Apex, Height, Right Triangle Area, Base Area, Projected Area.

Fagnano's Problem
Inscribed Triangle with the Minimum Perimeter.

Isogonic-Jacobi Theorem: Using TracenPoche Dynamic Geometry Software

Taylor Circle Theorem Using TracenPoche Dynamic Software
Step-by-Step construction, Manipulation, and animation.

Marion Walter's theorem and related topics

Marion Walter's Theorem and Related Topics: Index

Marion Walter's Theorem: Triangle and Hexagon areas:
Using TracenPoche Dynamic Geometry Software

Eight Point Circle Theorem. Elearning

Eight-Point Circle Theorem
Step-by-Step construction, Manipulation, and animation.

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