Technical Drawing - Exam Papers - Higher - 2007 - Building
Fig. 2 shows the outline plan and elevation of roof surfaces.
(a) Surfaces A and C have pitches of 40° and 50° respectively.
(b) Surface B has a pitch of 45°.
(c) The dihedral angle between the surfaces A and D is 120°.
(d) The dihedral angle between the surfaces E and F is 140°.
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