Question

In a quadrilateral ABCD, the diagonals intersect at point T. Thomas has used the Alternate Interior Angles Theorem to show that angle ADB is congruent to angle DBC and that angle DBA is congruent to BDC.

Which of the following can Thomas use prove that side AB is equal to side DC?

AC ≅ AC
AC ≅ DB
TA ≅ TC
DB ≅ DB

Answer 1

i think its the second choice

Answer 2

thats what i thought thanks