Mathematics 0580 · IGCSE · Circle theorems I

Circle theorems I — practice question

The figure shows a circle with centre $O$ and diameter $AB$. Points $A$, $B$ and $C$ are on the circumference. The diagram is not drawn to scale.

(a)[1]

Write down the mathematical term for line $AC$.

(b)[2]

Find the value of $x$. Give a geometric reason 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: “Chord” …