
Technical Drawing  Exam Papers  Ordinary  1991  Paper 1
Question 4
 In an ellipse the distance from the focus to the directrix is 40 mm and the eccentricity is 0.75.
Draw the ellipse and construct a tangent to the curve at a point 50 mm from the directrix.
 Draw the triangle DEF shown below. Draw a parabola having F as its focus and having D and E as points on the curve.
Construct a tangent to the curve at the point D.
