Question

Given quadrilateral ABCD, where AB || CD, ∠ABC ≅ ∠CDA, and a diagonal AC. Which method can be used to prove TriangleABC ≅ TriangleCDA?

f Angle-Angle-Side (AAS)
g Side-Side-Angle (SSA)
h Side-Angle-Side (SAS)
j Side-Side-Side (SSS)
Questions regarding this site should be directed to Steve Gagnon. Please include this quest

Answer 1

Easiest thing to do is draw it, so let's sketch it out.

Answer 2

And then, because both triangles have the same angle and the two sides are parallel, ad and bc have to be congruent

Answer 3

Then, because AC is shared by both triangles, we know it's the same for both, we now have two pairs congruent side and 1 congruent set of angles.
So side angle side I think