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

 

 

Recent Additions

Geometry Problems
Ten problems: 1351-1360
Visual Index
Open Problems
All Problems
Polygons
Collinear Points
Kurschak's Dodecagon
Problem 1358: Square, Regular Dodecagon
View or Post a solution