Brain dead - Trig call

[David Bethel]

Ok I'm brain dead today:

 

ab > bc form right angle

 

Length ab is known

 

Angle ac is known

 

Length ac (/ (distance ab) (sin ac))

 

My ugly 1 of the day is:

 

Length bc = (sqrt (- (* ac ac) (* ab ab)))

 

Any clue to the trig call I need to find length bc?

 

-David ( of the zombies )

[PS_Port]

Length bc = (* (distance ac) (cos A))

 

I have changed the angle variable to A

[David Bethel]

Thanks! I'll give it a try in the AM. I knew it should be simple, just couldn't bring it ti mind. Thanks again -David

[CarlB]

cos ac=bc/ac

 

...oops, way too slow

[BIGAL]

OTHERS HAVE A HABIT OF ANSWERING

 

sin cos tan !

 

o/h a/h o/a

 

o opposite h hypot a adjacent