Geometry Problem 1358: Regular Dodecagon, Diagonal, Concurrency, Concurrent Lines

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 1357: Regular Dodecagon, Diagonal, Concurrency, Collinearity, Points, Lines

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 1323: Square, Angle Trisector, Diagonal, Regular Dodecagon, Area, 30-60 degrees

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Problems 721-730: Triangle, Circle, Altitude, Orthocenter, Circumcircle, Perpendicular, Collinearity, Concurrency, Square, Dodecagon, Circumscribed Qu

Ten Geometry Problems
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Zoom Problems 721 - 730

Level: High School, College geometry

Problem 725: Kurschak's Dodecagon, Square, Equilateral Triangle, Midpoints, 30,60 Degrees

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

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Kurschak's Tile and Theorem.

Jozsef Kurschak (Hungary, 1864-1933) An elegant and a purely geometric way of finding the area of a regular dodecagon.


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