Answer:
SAS
Step-by-step explanation:
TWO SIDES ARE GIVEN EQUAL......
angleACB=angleDCE ( vertically opposite angles )
so done...... it's SAS
We can see already that
AB = ED
BC = DC
So it must have 2 S's.
Then we can see ∠ACB = ∠ECD because of verticals.
This gives us the SAS rule.
