Geometry Problem 1199: Equilateral Triangle, Square, Altitude, Circle, Incircle, Inradius, Sketch, Software. Tiled background image: Intihuatana, Machu Picchu.

The figure shows an equilateral triangle ABC with the altitude BH and the square CHDE. DE cuts BC at F and AF cuts BH at G. If AB = 2, find the measure of the inradius of triangle AGC.

Geometry Problem 1199: Equilateral Triangle, Square, Altitude, Circle, Incircle, Inradius, Metric Relations

Sketch of problem 1199 using iPad Apps.

Sketch of problem 1199 using mobile apps. Geometry Problem 1199: Equilateral Triangle, Square, Sketch Software

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Last updated: Dec 11, 2017