Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 44
gon. Bisect it and draw a line perpendicular to it at thebisection. The perpendiculars from the sides AB and B2will cut in G. With G as center and radius GA describe acircle • it will contain the pentagon. … Fig. 45. 3° MECHANICAL DRAWING. ^2h 51 To Construct a Heptagon on a Given .rig. 4:0. LINE AB.—Extend line AB to C. From B with radius ABdescribe a semicircle. With center A and same radius de-scribe an arc cutting the semicircle in D. Bisect AB in E.Draw line DE. With C as center and DE as radius,…
