Technical Graphics - Exam Papers - HL - 2011

Section B - Question 6

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The figure shows the design of a logo for a bird sanctuary.

The curve ABC is a parabola with vertex at B. The curve DEG is a semi-ellipse and point P is a point on the curve. Determine the length of the minor axis and draw the semi-ellipse DEG.

The curve RS, with its vertex at R, is identical to a portion of the parabola ABC.

Draw the curve RS showing clearly how to determine point S.

The line AT is a tangent to the circle from A.

Complete the given logo showing clearly all construction lines and points of contact.

Note: Choose your own dimensions for the eye of the bird.

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