Downloadable worksheets for Edexcel A Level Maths Trigonometric Ratios, with answers included. Worksheets covering 9.1 The Cosine Rule, 9.2 The Sine Rule, 9.3 Areas of Triangles, 9.4 Solving Triangle Problems, 9.5 Graphs of Sine, Cosine and Tangent, and 9.6 Transforming Trigonometric Graphs, matched to the Edexcel A Level Maths (9MA0) specification and suitable for A Level Maths. Print or work through on screen.