
B B\,B is a point on the circumference of a circle, centre OOO. AB AB\,AB is a tangent to the circle.
Angle BOA=72∘BOA = 72^\circBOA=72∘
Work out the size of angle BAOBAOBAO. 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.