EG - UNIT 5 - PERSPECTIVE PROJECTION -PENTAGONAL PYRAMID

How to draw perspective projection of Pentagonal pyramid. side 30 mm,axis 40mm. behind PP 25mm, SP infront of PP is 40 mm& above GP 20 mm.

[nishanth.k]

20. A pentagonal lamina of 40 mm side lies on the ground. The corner which is nearest to PP is 15 mm behind it and an edge containing the corner is making 45°with PP. The station point is 40 mm in front of PP, 50 mm above GP and lies in a central plane which is at a distance of 70 mm to the left of the corner nearest to PP. Draw the perspective projection of lamina.

[arumugamalagappan]

Ok .but a little confusion in the fixing of O (apex) projection