Question: pq is a chord of a circle with centre o?
Answer: In the given figure, PQ is a chord of a circle with centre O and PT is tangent. If ∠QPT = 60o, find ∠ PRQ. PQ is the chord of the circle and PT is tangent. ... We know that the angle subtended by an arc of a circle at the centre is twice the angle subtended by it any point on the remaining part of the circle.