In the triangle ABCABCABC, AB=8cmAB = 8\text{cm}AB=8cm, BC=7cmBC = 7\text{cm}BC=7cm and AC=5cmAC = 5\text{cm}AC=5cm
Find the size of angle BACBACBAC.
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.