The only option that cannot be used to prove that the diagonals of parallelogram abcd intersect at point e is; Option C
A) The sum of the interior angles of any quadrilateral is 360° and so this is true about the parallelogram.
B) AB = CD and BC = DA from opposite sides of a parallelogram are equal. Also AC = CA because of reflexive property of congruence. Thus, ∠ABC ≅ ∠CDA
C) This is not true because ∠ABC ≅ ∠CDA instead of ∠ABC ≅ ∠CDE.
D) This is true because of the definition of a transversal.
Read more about proof of quadrilateral at; https://brainly.com/question/27846700
#SPJ1