HIGHLIGHTS
- who: Mathematics Subject Classification and collaborators from the Department of, University of Toronto, Toronto, ON M S , Canada have published the article: Fun Problems in Geometry and Beyond, in the Journal: (JOURNAL)
SUMMARY
Prove the Chasles-Reye theorem: pick two points on an ellipse and draw the tangent lines from them to a confocal ellipse. A polygon P in the projective plane is called projectively self-dual if there exists a projective map from the projective plane to the dual plane that takes P to the dual polygon P * (whose vertices are the . . .
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