Jopling, Joseph, Gladwin, George, fl. 1821-1838 · London : M. Taylor · leaf 53
parallel to the face passing through bfd , and ac not being parallel to bd , abed cannot be a plane section. In like manner eg, not being parallel to fh , efgh cannot be a plane section. Fig. 73. Fig. 74. Fig. 74 represents another cube cut by right lines on each of four faces, forming a trapezium.… … V
Axonometric projection · Perspective
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