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

Proposition

The figure below shows a regular dodecagon ABCDEFGHJKLM. JA and DC extended intersect at N. Prove that points N, B, and F are collinear.
 


Geometry Problem 1357: Regular Dodecagon, Diagonals, Concurrency, Collinearity, Points, Lines. Math Infographic
 

Sketch of problem 1357


Sketch of Geometry Problem 1357, Tutor

 

 

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Kurschak's Dodecagon
Problem 1323: Square, Regular Dodecagon
Problem 1358: Square, Regular Dodecagon
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