Question 11 Mark
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: ∠QAB
Answer
View full question & answer→PAQ is a tangent and AB is the chord.
∠ QAB = ∠ ADB = 30° (angles in the alternate segment)
∠ QAB = ∠ ADB = 30° (angles in the alternate segment)