[pstricks] Points of Intersection

David Arnold dwarnold45 at suddenlink.net
Wed Mar 18 20:33:31 CET 2009

My trigonometric solution requires a little law of cosines and a  





On Mar 18, 2009, at 11:50 AM, David Arnold wrote:


Suppose that I want a triangle having sides measuring 4, 5, and 6
units. Using Geometer's Sketchpad, or Geogebra, I could draw a
segment AB of length 6, then add circles of radius 4 and 5 with
centers at A and B, respectively. I then could choose on of the
points of intersection of the two circles, call it C, and I would
have the needed triangle ABC.

Now, in pstricks I could do some trig, come up with some angles, and
use a polar coordinate representation of the point C.

What I am wondering is this: Is there a slicker way of accomplishing
this goal of drawing a triangle with sides 4, 5, and 6 units?

Suggestions are most welcome.


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