In the triangle ABCABCABC, AB=13cmAB = 13\text{cm}AB=13cm, BC=10cmBC = 10\text{cm}BC=10cm and angle BAC=30∘BAC = 30^\circBAC=30∘
Find the two possible sizes of angle ABCABCABC, giving your answers to two decimal places.
97 exam-style questions on WJEC A Level Maths 1.5 Trigonometry, covering 1.5.1 Trigonometry, 1.5.2 Trigonometry, 1.5.3 Trigonometry, 1.5.4 Trigonometry, and 1.5.5 Trigonometry. Each one has a worked solution and a mark scheme showing where the marks go.