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 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