The diagram shows a decorative tile in the shape of a sector OAB OAB\,OAB of a circle with centre OOO. OA OA\,OA is the diameter of a semi-circle. OA=12OA = 12OA=12 cm.
Find the area of the shaded region (the area of the sector minus the area of the semi-circle). Give your answer in terms of π\piπ.
Sector Areas and Arc Lengths Questions
Practise OCR GCSE Maths Sector Areas and Arc Lengths with exam-style questions for Foundation and Higher tier. 34 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.