The figure shows a triangle ABC with AD parallel to CB, CE parallel to AB, and AD = CE. If AE and CD meet at F, prove that BF is the bisector of the angle ABC.
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.
Original problem 625.