The figure below shows a parallelogram ABCD. E is a point on AD, BE cuts diagonal AC at F and CD extended at G. Prove that BF is the geometric mean or mean proportional of FG and FE.
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 834