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The figure shows a triangle ABC with
the excircle O corresponding to BC (D, E, and F are tangency points).
M is the
midpoint of arc DE. BM and CM cut
chord DE at G and H, respectively. Prove that DG + HE = GH.
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
1317
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