A,B,C A, B, C\,A,B,C and D D\,D are points on the circumference of a circle.
Angle BAD=102∘BAD = 102^\circBAD=102∘ Angle ADC=87∘ADC = 87^\circADC=87∘
Find the size of angle ABCABCABC.
Give a reason for your answer.
Practise OCR GCSE Maths Circle Theorems with exam-style questions for Foundation and Higher tier. 72 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.