In the following diagram, we know that AD=BC and ∠1=∠2 which of the three theorems (ASA, SAS or SSS) would be used to justify that ∆ABC=∆CDA explain
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ASA (it's not possible)
SSS (it's not possible)
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SAS (side- angle-side)
∆ABC=∆CDA because
Side AD=BC
Angle ∠1=∠2
Side AC is the same for the two triangles.
