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Technical Drawing - Exam Papers - Ordinary - 1996 - BuildingQuestion 4Fig. 4 shows the outline plan of three adjoining hyperbolic paraboloid roof surfaces ABOF, BCDO and DEFO. The roof is in the form of an equilateral triangle in plan. The corners A, C and E are 12 m above ground level, corners B, D and F are 4 m above ground level, and corner 0 is 18 m above ground level. (a) Draw the plan of the roof and project the elevation. Scale 1 : 200 ![]() ![]() |
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