Question

This one please!
Am stuck with this question, hoping for a good answer. ​

Answer 1

★Answer★

$\angle \: CAD = \angle \: CBD\\ \color{lime}(Angle \: In \: Same \: Segment \\ \color{lime}\: Are \: Equal) \\ =70 \degree \\ \angle \: BAD= \angle \: BAC+ \angle \: CAD \\ \angle \: BAD= \angle \: 40 \degree \angle \: 70 \degree = 110 \degree \\ Also, \: \angle \: BAD+ \angle \: BCD= 180 \degree \\ \longmapsto \: 110 \degree + \angle \: bcd = 180 \degree \\ \angle \: bcd = 180 \degree - 110 \degree = 70 \degree$