The diagram shows two triangles, PQS PQS\,PQS and RSQRSQRSQ, sharing a common side QSQSQS.

Prove that triangle PQS PQS\,PQS is congruent to triangle RSQRSQRSQ.
Practise Edexcel GCSE Maths Congruent Triangles with exam-style questions for Foundation and Higher tier. 28 questions, matched to the Edexcel GCSE Maths (1MA1) 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.