$C$C is the centre of the circle. Calculate $x$x, giving a reason related to the properties in a circle for your answer.

Calculate $x$x. Give a reason for your answer related to the properties in a circle.

Calculate $x$x, giving reasons for your answer.

Find the length of $AB$AB. Give reasons for your answer.

Deduce and apply the angle properties related to circles

Apply geometric reasoning in solving problems