Answer:
ΔADC ≅ ΔCBA by the SSS congruence postulate
Explanation:
This is because of the following:
AD ≅ CB
DC≅AB
lastly, AC≅AC,
however ΔADC ≅ ΔABC by the SSS congruence postulate is also true since ΔABC and ΔCBA is just the same triangle. We can name our triangle in the both the same way.