Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 42
Fig. 40. Fig. 41. Firgbfi: Another Method.—Extend line AB. Withcenter A and any convenient radius describe a semicircle.Divide the semicircle into as many equal parts as there aresides in the required polygon, say 6. Draw lines throughevery division except the first. With A as center and AB as 28…
