A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 451
^ ^ The hypotenuse of this triangle is therefore Fig. 30 ^^e true lengths of the lines A H, D H, etc., as shown in Fig. 29. The true lengths of all lines border-ing the triangular surfaces of the solid shown in Fig. 29having been found, the triangles may now be constructedon the drawing, care being… … Fig. 31 edge is then laid off on a line as at A E, Fig. 31. The tri-angle A EB, Fig. 31, is first constructed; the length of theside A E being laid oft, and BE, Fig. 29, being of the samelength, an arc may be described in Fig. 31 from j5 as a cen-ter, with a radius equal to EA. Intersect this arc…
