The first six books of the elements of Euclid : with a commentary and geometrical exercises ; to which are annexed a treatise on solid geometry, and short essays on ancient geometrical analysis, and the theory of transversals (1861)
Lardner, Dionysius, 1793-1859 · London : Print. for Taylor and Walton · leaf 271
252 ELEMENTS OF SOLID GEOMETRY. … Proposition X. (92) An oblique parallelopiped is equal in volume to a rectangular one having a base of the samemagnitude and an equal altitude. On the base ABCD of the oblique parallelopiped constructanother parallelopiped in the same al-titude and whose sides will be per-pendicular to the base.…
Geometry
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