Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 149
ngle of 45°. Thisdoes not mean that theyform an angle of 45° withthe V.P. Let us illustrate thiswith a model. Take a sheet of notepaperand draw a diagonal to eachof its inside pages, as ad anddc, Fig. 255. Now stand iton a table against the 45°angle of a set-square. Thetwo pages will then… … Fig. 25s 136 GEOMETRICAL DRAWING AND DESIGN. 180. To project a quadrilateral prism 7h x 3| x 3|, resting onone of its shorter edges on the H.P., with its longer edgesinclined to the h.p. at an angle of 60°, and in vertical planesinclined to the v.p. at an angle of 45° ; one of its lower comersto be…
Geometrical drawing · Design · Drawing
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