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 ∠ADB = 30° and ∠CBD = 60°, Calculate:

(i) ∠QAB,

(ii) ∠PAD,

(iii) ∠CDB,

Answer 1

i) PAQ is a tangent and AB is the chord.