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Technical Drawing  Exam Papers  Higher  1995  Paper 1Question 1GIven the horizontal and vertical projections of two planes ABC and ADE. A = 140  100  10 (a) Determine the line of intersection between the planes. (b) Determine the dihedral angle between the planes. (c) Draw the plan and elevation of the perpendicular from D to the plane ABC. Hence or otherwise, determine the inclination of AD to the plane ABC. (d) On a separate diagram, draw the projections of the skew lines AB and DE and show the projections of the shortest horizontal distance between them. 


