With this question willbr />
which statement is not used to prove that δabc is similar to δade?

triangles abc and ade in which point e is between points a and c on segment ac and point d is between points a and b on segment ab, angle a is a right angle

ac is a transversal line passing ed and cb.
angle a is congruent to itself, due to the reflexive property.
segments ed and cb are parallel.
the sum of angles a and b are supplementary to angle c.