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A hexagonal lamina of 30 mm sides rests on HP with one of its corners touching VP and the surface inclined at 45 deg. to it. One of its edges inclined to HP at 30 deg. What will be the value of α?

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A hexagonal lamina of 30 mm sides rests on HP with one of its corners touching VP and the surface inclined at 45 deg. to it. One of its edges inclined to HP at 30 deg. What will be the value of α?

(a) 32.31°

(b) 42.32°

(c) 52.32°

(d) 62.32°

This question was posed to me in final exam.

Origin of the question is Projections of Planes topic in portion Orthographic Projection, Projections of Lines, Planes and Solids of Civil Engineering Drawing

1 Answer

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Best answer
Right choice is (a) 32.31°

The best I can explain: Referring the figure below, on measuring the value of α, inclination is known.

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