March 17th, 2017, 07:29 AM  #1 
Member Joined: May 2016 From: Ireland Posts: 96 Thanks: 1  circle proof
I'm trying to use angles on the same arc theorem.
Last edited by skipjack; March 17th, 2017 at 01:04 PM. 
March 17th, 2017, 01:03 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 19,190 Thanks: 1649 
By the exterior angle theorem, angle LAC = angle ALB + angle ADB. Also, angle ALB = angle ACB. 

Tags 
circle, proof 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Very basic equation of a circle/ proof??  maxgeo  Algebra  8  August 29th, 2012 07:26 PM 
Circle Proof Problem  SmokeDawg  Algebra  1  March 24th, 2012 06:08 PM 
Circle Proof  Proclivitas  Algebra  4  March 20th, 2012 09:06 PM 
Circle Proof  meph1st0pheles  Algebra  7  March 9th, 2010 06:19 AM 
Circle Proof  meph1st0pheles  Applied Math  0  December 31st, 1969 04:00 PM 