A square picture frame EFGH EFGH\,EFGH has a diagonal length of 5 m.
Calculate the perimeter of the picture frame. Give your answer correct to one decimal place.
Practise AQA GCSE Maths Pythagoras with exam-style questions for Foundation and Higher tier. 55 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.