Geometry Problems, Online Education

Sketch of Problem 355: Circles, Common external tangent, Concyclic points. Software, Mobile Apps, iPad.

The figure shows circles 1 and 2 with the common external tangents EH and AD. BF is tangent to circle 1 at M, CG is tangent to circle 2 at N. Lines AM and DN meet at P and lines EM and HN meet at Q. Prove that the points M, P, N, and Q are concyclic.
 

Sketch of Problem 598 Concyclic points, software, 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 355 

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