The figure below shows three external circles A, B, and C in a plane, D, E, and F are the intersections of the common internal tangents of circles A,B, A,C and B,C, respectively. Prove that AF, BE, and CD are concurrent.
Geometric art is a form of art based on the use and application of geometric figures. A geometric figure is any set or combination of points, lines, surfaces and solids. A mobile app or mobile application software is a computer program designed to run on smartphones and tablet computers.
Geometry Problems
Ten problems: 1391-1400
Visual Index
Open Problems
All Problems
Circle
Concurrent lines
Tangent Line
View or Post a solution