Question

HELP PLEASE ASAP ALMOST FAILING!!!

In the figure, ∆ABD ≅ ∆CBD by Side-Angle-Side (SAS). Which segments are congruent by CPCTC?



AB ≅ CB
AB ≅ DB
CB ≅ CD
CB ≅ DB

Answer 1

Remark

Whatever you did not use to obtain congruency, you can use to get congruent by CPCTC. They have to look like they are about the same size. Later on you will be taught not to rely on diagrams other than as guides.

So for sure AB and CB are not used as part of the congruency so the look like they should be congruent and that is your answer.