Topic: Question of the day #5

[Mark]

A WILD GUESS......pythagorean theorem? in code?

Nope!  that would be (+ (sq a)(sq b)) = (sq c) using our (sq) function from above.

[paulmcz]

cosine of an angle opposite to side 'a', in triangle a-b-c where a=85, b=100, c=80

[CADaver]

Man I haven't run a cosine since Fortran IV, no wonder I missed it.  

What's next Sanscrit?  

[Keith™]

Dangit .... and I was thinking that was what it is....I have not studied trig in so long, I think I have nearly forgot everything that I learned.....

[Mark]

The law of cosines was the answer I was looking for.

Link:
http://faculty.stcc.edu/mcdonald/mm232/Cosines/cosines.htm

[whdjr]

Awesome link Mark.  I checked out some of the other links there and they have some good stuff.

[David Bethel]

I use the law of cosines this to determine the points for side-side-side triangle computation.

There would be good challange for you

Determine the points of a triangle based on

1) 1 point is always 0,0,0

2)  the various metheods of drawing constuction
side-angle-side
angle-side-angle
side-side-angle
side-side-side
 
-David