Deriving an angle from three points

[Phil Davis]

On 12/16/09 10:57 AM, Bruce Robertson wrote:
> No it didn't.
>
> On Dec 16, 2009, at 10:44 AM, Colin Holgate wrote:
>
>    
>> Well, of course it's a triangle, but describing it as a V helped explain
>> which angle was wanted.
>>      

I thought Mark S identified it well when he called it the 'internal 
angle' - at least that did it for me:
> On Dec 15, 2009, at 10:35 PM, Mark Wieder wrote:
>> >  Mark-
>> >  
>> >  Tuesday, December 15, 2009, 10:21:47 PM, you wrote:
>> >  
>>> >>  40,116
>>> >>  98,186
>>> >>  132,118
>> >  
>>> >>  How would one determine the angle created from three points, such as those above?
>> >  
>> >  There are three angles. Which one are you interested in?
>> >  
>> >  ---
> The above represents roughly a V shape with the center point the vertex.  I was trying to detemine the internal angle.
>
>    

-- 
Phil Davis

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