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 WXZ=∠WYZWXZ = \angle WYZWXZ=∠WYZ.
Practise Edexcel GCSE Maths Proof of the Circle Theorems with exam-style questions for Foundation and Higher tier. 20 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.