Mathematics 0580 · IGCSE · Circle theorems II

Circle theorems II — practice question

A, B, C and D all sit on the circle. $PCQ$ is a tangent to the circle at C. Angle $ACQ$ is $64^\circ$.

(main)[3]

Calculate angle $ABC$, and give reasons for your answer.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The angle is $116^{\circ}$.” …