Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 42
he diameter, whatever the number ofsides of the polygon. Fi£b to. To Construct any Regular Polygonwith A GIVEN Side AB.—Make BD perpendicular andequal to AB. With B as center and radius AB describe arcDA. Divide arc DA into as many equal parts as there aresides in the required polygon, as 1, 2, 3,…
