Step-by-step worksheet guiding students to prove that the angle at the centre of a circle is twice the angle at the circumference, using geometric diagrams and algebraic expressions.
A worksheet titled "Proving Circle Theorems - Angle at the Centre" from Cazoom Maths, featuring diagrams of circles with labeled points A, B, C, and O, illustrating the relationship between the angle at the centre and the angle at the circumference.