PPP, Q Q\,Q and R R\,R are points on a circle, centre OOO. ARB ARB\,ARB is a tangent to the circle at RRR.
PQ=QRPQ = QRPQ=QR Angle ARP=a∘ARP = a^\circARP=a∘
Find the size of angle ORQORQORQ, in terms of aaa. Give reasons for each stage of your working.
59 exam-style questions on Eduqas GCSE Maths Circle Theorems. Each one has a worked solution and a mark scheme showing where the marks go.