SOLUTION: a triangle is four vertices and each of them has an external and internal angle

Algebra ->  Geometry-proofs -> SOLUTION: a triangle is four vertices and each of them has an external and internal angle      Log On


   

Question 681623: a triangle is four vertices and each of them has an external and internal angle
Found 2 solutions by Alan3354, Onmyoji.S:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
a triangle is four vertices and each of them has an external and internal angle
--------------
Do you have a question?

Answer by Onmyoji.S(32) About Me  (Show Source):
You can put this solution on YOUR website!
what you want to prove?
or can you put more info on what you want to prove?