The distance between the projectors of a straight line AB is 60 mm. one end A is 10 mm above HP and 20 mm in front of VP. While the other end B is 40 mm below the HP and 50 mm behind the VP. Draw its projections and mark its traces. Also find its true length and true inclinations with both the reference planes. (b) The top view of a plate, the surface of which is perpendicular to the VP and inclined at 600 to the HP. is a circle of 60 mm diameter. Draw its projections.