The diagram shows the quadrilateral ABCDABCDABCD.
AB=5AB = 5AB=5 cm, BC=8BC = 8BC=8 cm, angle ABC=60°ABC = 60°ABC=60°, angle ACD=75°ACD = 75°ACD=75° and angle ADC=60°ADC = 60°ADC=60°.
Show that AC=7AC = 7AC=7 cm.
Find the exact length of CDCDCD.
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.