Question

In the following figure, PQ is the tangent to the circle at A, DB is the diameter and O is the centre of the circle. If $\angle ADB={30}^o$ and $\angle CBD={60}^o$, calculate :

(i) $\angle$ QAB,

(ii) $\angle$ PAD,

(iii) $\angle$ CDB.

Answer 1

PAQ is a tangent and AB is the chord.