Downloadable worksheets for Edexcel AS 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 AS Level Maths (8MA0) specification and suitable for AS Level Maths. Print or work through on screen.