AAA, B B\,B and C C\,C are points on the circumference of a circle, centre OOO. BD BD\,BD and CD CD\,CD are tangents to the circle.
Angle ODC=31∘ODC = 31^\circODC=31∘
Find the size of angle BACBACBAC.
Give reasons for each stage of your working.
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.