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Technical Drawing  Exam Papers  Ordinary  1997  Paper 1Question 6(a) In an ellipse the distance from the focus to the vertex is 25 mm and the eccentricity is 0.5. Draw the ellipse. (b) In Fig. 6 the line AB is the axis of a parabola, DD is the directrix and P is a point on the curve. Show how the position of the focus F is determined and draw a portion of the curve. 


