If I is the incentre of the triangle ABC and AI meets the circumcircle at D, then prove that DB = DC = DI. If DE and DF are perpendiculars to AB and AC then prove that AD = AE = (AB + AC)/2(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Incentre properties

**Physics Forums | Science Articles, Homework Help, Discussion**