Examples

Some examples using Cinderella

• Apollonian Circles - the basis of Inversive Geometry.
• A Theorem on Conics - the basis of duality in Projective Geometry.

Now a list of pairs of theorems:

Theorem	Dual Theorem
Pappus's Theorem	Brianchon's First Theorem
Pascal's Theorem	Brianchon's Second Theorem
The Three Tangents Theorem	The Three Chords and Three Tangents Theorem

Main Cinderella Page

My Geometry Pages