Q.

A pentagonal prism is resting on H.P on one of its corners and from top view the solid’s axis is making 30 degrees with the xy reference line. What are the front views of the 1st, 2nd, 3rd stages of orthographic drawing?

A. rectangle, rectangle, heptagon
B. pentagon, heptagon, heptagon
C. rectangle, heptagon, rectangle
D. pentagon, rectangle, heptagon
Answer» A. rectangle, rectangle, heptagon
Explanation: as in the 1st stage the pentagonal prism is to be placed in simple position the axis perpendicular to v.p so front view gives rectangle and then rotated so as to keep one of the corners only on h.p so the front view will remain same then from projections of top view the front is drawn so an irregular heptagon will form.
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