Typography of Geometry Problem 897: Intersecting Circles, Common External Tangent, Secant, Congruence, iPad Apps

Proposition

The circles O and O1 intersect at A and B (see the figure below), CD is the common external tangent, CA intersects circle O1 at E, DA intersects circle O at F. If FC and ED intersect at G, prove that GC and GD are congruent.


Typography of Geometry Problem 897: Intersecting Circles, Common External Tangent, Secant, Congruence, iPad Apps. Math Infographic, Tutor


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.

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Original problem 897

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Ten problems: 891-900
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