a) Redraw the following sets of lines from figure 2 below and mark with arrowheads the sets of parallel lines. Make sure to distinguish between individual pairs. $44 45 B 30 60 Figure 2: A set of lines: some of which are parallel pairs. b) Find the angles a, and y giving reasons for your answers. 20 of 50 20 25 B 40 100 Figure 3: A triangle where BE || CD. D c) In the diagram below, ZABC = 63, AB is a diameter, QB is a tangent line at B and ZQBA = 90. Determine the following angles, giving reasons for your answers. i) ZBCA ii) ZCAB iii) ZCBQ iv) ZBQC Q Figure 4: A circle with centre marked at O.