February 20th, 2017, 03:35 PM  #1 
Newbie Joined: Feb 2017 From: Texas Posts: 1 Thanks: 0  Help. Circumcenter and Incenter
I don't know how to do this! Please help with answer and explanation.

February 20th, 2017, 04:12 PM  #2 
Math Team Joined: Jul 2011 From: Texas Posts: 2,434 Thanks: 1197 
look at triangle BDC ... angle DBC = 73, angle BCD = 21 ... how big is angle BDC? once you determine angle BDC, look at triangle BDP 

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