The diagram shows a rectangle, ABCDABCDABCD, and a semi circle. BC BC\,BC is the diameter of a semi circle.
Calculate the percentage of the area of the rectangle that is shaded. Give your answer correct to 1 decimal place.
30 exam-style questions on AQA GCSE Maths Sector Areas and Arc Lengths. Each one has a worked solution and a mark scheme showing where the marks go.