A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 434
ual to thetrue length of an edge of the pyramid—will pass throughthe points a, b, c, d, and a\ representing the lower extremi-ties of the upright edges of the pyramid. These points are §10 DEVELOPMENT OF SURFACES 39 equally distant from one another as measured on the arc.This may be proved by… … Fig. 25 that, for the cone^ the development is defined by the circulararc, while in the case of the pyramid, straight lines- aredrawn between the points a., b, c, etc., as shown in Fig. 25.These developments will be completed in a later problem. 35. Stretchouts for Radial Solids. — Since the…
