The diagram shows a rectangle, EFGHEFGHEFGH, and a semi-circle. FG FG\,FG is the diameter of the semi-circle. EF=18 cmEF = 18\text{ cm}EF=18 cm and FG=16 cmFG = 16\text{ cm}FG=16 cm.
Calculate the percentage of the area of the rectangle that is shaded. Give your answer correct to 1 decimal place.
Sector Areas and Arc Lengths Questions
Practise AQA GCSE Maths Sector Areas and Arc Lengths with exam-style questions for Foundation and Higher tier. 34 questions, matched to the AQA GCSE Maths (8300) 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.