Question

I'm finally down to the last 4 questions on my homework, and they are the hardest. Would appreciate if you helped! thanks :) attachment.

Answer 1

AB=DC (given)

Answer 2

ADB=CBD=90º (given)

Answer 3

BD is a common side

Answer 4

so we have two equal sides and the a corresponding angle equal.
that makes SAS congruence
hence
DAB is congruent to BCD