
X X\,X and Y Y\,Y are points on the circumference of a circle, centre OOO. ZY ZY\,ZY is a tangent to the circle at point YYY.
Angle YXZ=31∘YXZ = 31^\circYXZ=31∘
Find the size of angle XZYXZYXZY. You must show all your working.
Practise Edexcel GCSE Maths Circle Theorems with exam-style questions for Foundation and Higher tier. 72 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.