Rogers' drawing and design; an educational treatise relating to linear drawing; machine design; working drawings; transmission methods; steam, electrical and metal working machines and parts; lathes; boiler and parts; instruments and their use; tables, etc (1913)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 91
d a radius equal to C5 describe an arccutting the line C3 at D. With D as center, andwith the same radius draw an arc cutting the lineC4 at E, and so on. Join the points C2D, etc., toform the required polygon. 104 ROGERS DRAWING AND DESIGN. To inscribe a regular pentagon in a given circle.(See… … Fio. 199. A straight line joining A and J is equal to oneside of the required pentagon. With arcs of aradius equal to AJ set off on the circumference thepoints where the sides of the pentagon will ter-minate. To inscribe a regular polygon of any number ofsides, within a given circle.
Mechanical drawing · Machine design
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