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.
59 exam-style questions on AQA GCSE Maths Circle Theorems. Each one has a worked solution and a mark scheme showing where the marks go.