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Technical Drawing  Exam Papers  Higher  1997  Paper 1Question 6(a) Draw a straight line DVF, where DV is 45mm long and VF is 28mm long. F is a focus of an ellipse, V is the vertex and D is a point on the directrix. Draw a portion of the curve. (b) Draw a triangle AFP where AF=35mm, FP=70mm and AP=85mm. F is one of the focal points of a double hyperbola, A is a point on the transverse axis, AP is a tangent to the curve and P is the point of contact. Draw a portion of the double curve. 


