
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
April 18th, 2013, 09:24 PM  #1 
Math Team Joined: Mar 2012 From: India, West Bengal Posts: 3,871 Thanks: 86 Math Focus: Number Theory  Sum of three angles
Hi members of MMF, My father almost had to force me this week to let me do geometry. I never liked it much, however, it's quite a fun to do them as I reckon slowly. I already had a whole reading of the geometry book by now, and after that, I asked my father that how much tight upper bounds can we get for the sum of three angles of a triangle without getting introduced to the parallels? I haven't seriously tried it yet, but a bound of 270 degrees is obvious since the sum of two angles of a triangle must be smaller than 180 degrees. Just write down the best bound you can find but not the method, Balarka . 
April 19th, 2013, 01:09 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 18,243 Thanks: 1439 
How about the 270° you've already mentioned?

April 19th, 2013, 10:42 AM  #3  
Math Team Joined: Mar 2012 From: India, West Bengal Posts: 3,871 Thanks: 86 Math Focus: Number Theory  Re: Sum of three angles Quote:
 

Tags 
angles, sum 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
angles  tejolson  Algebra  2  December 28th, 2012 05:04 PM 
X,Y angles.  ZardoZ  Algebra  6  December 8th, 2010 12:46 PM 
Box angles  Yoer  Algebra  1  April 26th, 2010 06:27 AM 
Angles and sin  blackobisk  Algebra  2  April 20th, 2009 07:07 PM 
3D Angles  Philosophaie  Physics  0  August 17th, 2008 11:31 PM 