A triangle PQR PQR\,PQR represents the layout of a park. The length of path PQ PQ\,PQ is 25 m and the length of path PR PR\,PR is 18 m. The angle between the two paths at point P P\,P is 40∘40^\circ40∘.
Work out the distance between Q Q\,Q and RRR.
Give your answer to 1 decimal place.
Practise AQA GCSE Maths The Cosine Rule with exam-style questions for Foundation and Higher tier. 44 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.