Question

B What additional information is needed to prove the triangles are congruent by SAS? O AD CD O ZABD - ZCBD O ZADB-ZCDB O ZDABZDCB А с D

Answer 1

Recall that SAS inplies Side, Angle in between, and other side.

So in the case given by the image:

we have the sides marked with a tick (Ab and BC) equal, We also have a common side (BD) which means it is equal for both, then we just need the angle in between these two sides to be equal. That is:

Angle ABD = Angle CBD

which is the second option in the listed possible answers.