Tangent lines to circles

#	Item
11	1 Inversion Finding the midpoint of a segment using only a compass Problem 1.1. Given a line through A and B, find the midpoint of the segment AB using Add to Reading List Source URL: www.math.ualberta.ca Language: English - Date: 2010-01-02 18:02:52 Projective geometry Euclidean plane geometry Conic sections Circle Inverse Perpendicular Inverse curve Tangent lines to circles Geometry Curves Inversive geometry
12	INVERSION IN THE PLANE BERKELEY MATH CIRCLE ZVEZDELINA STANKOVA Add to Reading List Source URL: mathcircle.berkeley.edu Language: English - Date: 2004-09-21 13:58:00 Euclidean plane geometry Elementary geometry Curves Radical axis Power of a point Inversive geometry Incircle and excircles of a triangle Tangent Tangent lines to circles Geometry Circles Analytic geometry