Assignment 8

Incenter of Triangles

by Debra Jackson

The internal angle bisectors of triangle ABC are extended to meet the circumcircle at points L, M, and N, respectively. Find the angles of triangle LMN in terms of the angles A, B, and C. Does your result hold only for acute triangles?

These results do appear to hold for all types of triangles!

Click here to try it for yourself!

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