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 354
Ficr. 150. Pkoblem 121. To rotate a given sqiiare abed on anaxis AB till it forms an angleof 45° with the plane of theoriginal figure. Fig. 150. From each of the four points a,•fj b, c, and d draw perpendiculars tothe axis AB. With C as centre, and radius Cc,draw an arc. At C let Cd make 334 SOLID…
Geometrical drawing
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