Projection of planes 007

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Projection of planes 007

  1. 1. Problem 4: Read problem and answer following questionsA regular pentagon of 30 mm sides is 1. Surface inclined to which plane? ------- HPresting on HP on one of it’s sides with it’s 2. Assumption for initial position? ------ // to HPsurface 450 inclined to HP. 3. So which view will show True shape? --- TVDraw it’s projections when the side in HP 4. Which side will be vertical? -------- any side.makes 300 angle with VP Hence begin with TV,draw pentagon below SURFACE AND SIDE INCLINATIONS X-Y line, taking one side vertical. ARE DIRECTLY GIVEN. c’1 d’1 e’1 b’ a’ c’e’ d’ 45º X Y 300 b’1 a’1 e e1 b1 a a1 c1 a1 d d1 b b1 d1 e1 c c1

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