Because [tex] DB [/tex] is a straight line, we can say:
[tex] m \angle CAD + m \angle CAB = 180^{\circ} [/tex]
Since, we know [tex] m \angle CAB = 85^{\circ} [/tex], we can substitute this value into our first equation and find the measure of [tex] \angle CAD [/tex]:
[tex] m \angle CAD + 85^{\circ} = 180^{\circ} [/tex]
[tex] \boxed{m \angle CAD = 95^{\circ}} [/tex]
The measure of [tex] \angle CAD [/tex] is 95 degrees.
