Given that ACBD is a kite. By which congruency property are the triangles ACB and ADB congruent?
SSS property
In the △ABC and △ABD,
AC = AD (Given)
CB = DB (Given)
AB is the common side.
⟹△ABC≅△ABD [SSS congruency]
Thus, by SSS congruency rule, the two triangles (ABC and ABD) are congruent.