Answer:
Step-by-step explanation:
The first choice is the correct choice
For Triangle ABC, we know that angle BAC is 50 degrees and angle BCA is 42 degrees. Since the sum of all angles in a triangle is 180 degrees, then angle ABC is 88 degrees
For triangle DEC, the vertical angle theorem proves that angle BCA and ECD are equal thus angle ECD is 42 degrees. Thus angle EDC is 50 degrees.
Since all the corresponding angles of ABC and EDC are equal, they are similar
Hope that helps!
