Step 1. Draw a circle of diameter D (view A).
Step 2. Construct four tangent lines as shown in view B.
Step 3. Construct four lines, 45° to the horizontal, tangential to the circle as shown in view C.
Step 4. Draw in the octagon (view C).
g. Approximate Ellipse, (figure 34) . In this problem we have to draw an approximate ellipse from the following given information: we have a major axis A-O-B and a minor axis of X-O-Y (view A). To construct this ellipse, perform the following steps:
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