I think I should clarify what I am trying to do. I do not wish to construct the parallelogram. I want to be able to set up the initial conditions by which I could then ask someone to prove that the two bisectors are equal. By this I mean a standard two column mathematical proof.
I do know...
Can anyone help me set this problem up?
I am trying to figure out how to Prove the Sander's Parallelogram.
See it here:
http://www.tigel.nl/fun/files/opticals/Ill...ith_line-25.htm [Broken]
basically it is proving that the bisectors are of equal length
The question is: what would be...