Three Tangent Circles. Inscribed and Circumscribed Circles, Radii.
Click the figure below to see the complete illustration.
See also:
Complete Soddy Circles and Descartes Theorem
Collection of Geometry Problems
Circle, Theorems and Problems
Level: High School, SAT Prep, College geometry
Saturday, May 30, 2009
Soddy Circles and Descartes Theorem
Subscribe to:
Post Comments (Atom)
Dear Pierre,
ReplyDeleteThank you for your comment. Now, the outer Soddy radius formula includes the negative sign (As shown in the diagram).