Problem-4
A hexagonal pyramid has an altitude of 60 mm and side base 30mm.  The pyramid rests on one of its side of the base on HP such that the triangular face containing that side is perpendicular to HP.  Draw the front and top views.

Solution: The solution the problem is shown in figure 9. In step-1, the pyramid is drawn in the simple position with base edge cd perpendicular to XY line.  In Step-2, the Front view is tilted about cd such that line o’c’d’ is made perpendicular to XY line. The top view is obtained by drawing projectors from the top view of step 1 and front view in step-2.

 

Figure 4. The projections of the hexagonal pyramid  of problem-4.