A diagram shows a triangle PQRPQRPQR. Point S S\,S lies on the line PR PR\,PR such that QS QS\,QS is perpendicular to PRPRPR.

Work out the size of angle QRSQRSQRS. Give your answer to 1 decimal place.
41 exam-style questions on AQA GCSE Maths SOHCAHTOA (Trigonometry). Each one has a worked solution and a mark scheme showing where the marks go.