Answer:
A, C, D, and E
Step-by-step explanation:
According to following triangle, the choices that explains that [tex]\triangle DBC[/tex] is isosceles, are:
-[tex]\overline {AB}[/tex] is an angle bisector of [tex]DAC[/tex]. (Choice A)
-[tex]\angle BDC[/tex] is congruent to [tex]\angle BCD[/tex]. (Choice C)
-[tex]\angle ABD[/tex] is congruent to [tex]\angle ABC[/tex]. (Choice D)
[tex]\angle DAB[/tex] is congruent to [tex]\angle CAB[/tex] (Choice E)
