Jopling, Joseph, Gladwin, George, fl. 1821-1838 · London : M. Taylor · leaf 55
atest equilateral triangular sections a series of hexagonal sections may be formed. If the cube be cut by a plane parallel to, and equally distant from, the two great triangular sections, the section will be a regular hexagon. Fig. 78 shews another view of these equilateral tri¬ angular sections… … Fig. 80 represents pieces cut out of a cube in which the sections are scalene triangles. In fig. 81 a cube is represented as cut by two inclined planes which, as it is placed in the book, may be the outline of a house with its roof having gable ends. The inclination of the roof is 30°. n
Axonometric projection · Perspective
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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