This section is from the book "Manual Training - Cardboard Construction", by J. H. Trybom. Also available from Amazon: Cardboard Construction.

1. Describe concentric circles, radii 4"X3" respectively.
2. Inscribe hexagon in smaller circle.
3. Draw triangles ACE and BDF.
4. Extend the sides of these triangles to the circumference of the other circle.
 
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