Geometry Problems, Online Education

Sketch of Problem 547: Triangle, Transversal, Four Circumcircles, Concurrency. Software, Mobile Apps, iPad

The figure shows a triangle ABC with a transversal DEF (F on the extension of AC). Prove that the circumcircles of triangles ABC, BDE, ECF, and ADF meet at a point G.
 

Complete quadrilateral, Circumcircles, Sketch Software, Mobile Apps, iPad

 

Geometric Art using Mobile Apps

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.

See also:
Original problem 547 

Home | SearchGeometry | Triangles | Circumcircle | Problems | All Problems | Visual Index | 541-550 | Email
Post a comment or solution | by Antonio Gutierrez