Find the value of x
in the triangle shown below.
=
16.2
6
6

1. statement- ca is parallel to db and e is the midpoint of ad reason- given2. statement- reason- alternate interior angles3. statement- de is congruent to ae reason- definition of midpoint4. statement- triangle aec is congruent to triangle deb reason- asa (angle side angle)

given that    bisects ∠dbc, which statement must be true? the answer is:   m∠abd = m∠abc