Haswell, Charles Haynes, 1809- [from old catalog] · New York, Harper & brothers · leaf 174
a Regular Polygon of any required. Numberof Sides—Fig. 16. From the point o, with the distance o B, describethe semicircle B b A, which divide into as manyequal parts, A a, a &, b c, etc., as the polygon is tohave sides. Let a hexagon be required. From o to the second point of six divisions… … C17.) ARCS.To Describe a G-otbic A.rc—-Fig. 17.O. ^o (18.)
Engineering · Mechanical engineering
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