Technical Graphics - Exam Papers - HL - 1996

In Question 6 you are given a figure which represents a radar reflector unit. You are told the curves ABC and BDE are based on the same ellipse with major and minor axes 100 and 70 respectively. You are also told that the parabolic curve PQR is tangential to the curve BDE at Q. You are asked to draw the outline of the building showing clearly all constructions.

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