Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 245
uct an equilateral triangle ale. Bisect each of theangles at a, h, and c by lines meeting at d. This completesthe plan. 224 SOLID GEOMETRY To find the altitude of the elevation, produce the line hd toe, and at d draw the line df perpendicular to cb. With 1) ascentre, and radius he, draw an arc… … Fie. 27. Fiff. 28. Peoblem 18. To 2)^oject the same solid tilted on to one of its angulccr joints withits base inelined at an angle of 20° with H.P. Scale ^ fullsize. Fig. 28. Fix the point k on XY, and draw the line kh at an angleof 20° with it, and equal in length to the line ba (Fig. 27). Asthis…
Geometrical drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Works. Popular edition.] 2 series (1886)](https://img.insideoutlibrary.com/img/200/bl-bl_003191336_9-297-2.webp)
