
Given the area of triangle ABC ABC\,ABC is k cm2k \text{ cm}^2k cm2
Find the exact value of x x\,x in terms of kkk.
Find the length of BCBCBC.
217 exam-style questions on Edexcel A Level Maths Trigonometric Ratios, 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. Each one has a worked solution and a mark scheme showing where the marks go.