Help with Euclidian Geometry Proof (Math B)?

Question

Given: DE // AB
DF // CB
<1 congruent to <2
Conclusion:
In the diagram:
Triangle ACB (a is the bottom left vertex, c the top, b the bottom right)
DE is a straight line from point D on AC to point E on line CB (forming triangle DCE
DF is a line from point D (on AC) to point F on AB forming triangle
ADF

Thank you

Answer 1

You haven't defined <1 and <2. Without that information, the conclusion doesn't necessarily follow.