W,X,Y W, X, Y\,W,X,Y and Z Z\,Z are points on the circumference of a circle, centre OOO.
Prove that angle WXY+WXY +WXY+ angle WZY=180∘WZY = 180^\circWZY=180∘.
19 exam-style questions on AQA GCSE Maths Proof of the Circle Theorems. Each one has a worked solution and a mark scheme showing where the marks go.