SOLUTION: I want to know what will i do to prove that quadrilateral is a parallelogram. what operation will i do?

Algebra ->  Geometry-proofs -> SOLUTION: I want to know what will i do to prove that quadrilateral is a parallelogram. what operation will i do?      Log On


   

Question 109515: I want to know what will i do to prove that quadrilateral is a parallelogram.
what operation will i do?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Show that opposite sides have the same slope.
If they do, they are parallel.
Cheers,
Stan H.