Answer:
SAS
Explanation:
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.
TWO SIDES ARE GIVEN EQUAL......
angleACB=angleDCE ( vertically opposite angles )
so done...... it's SAS
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