Beman, Wooster Woodruff, 1850-1922, Smith, David Eugene, 1860-1944 · Boston, Ginn & company · leaf 312
nsverse sections on the same side of the vertex iscalled a truncated pyramid; if the transverse sections areparallel, it is called a frustum of a pyramid, the two sectionsbeing called the bases of the frustum. A frustum of a pyramid is therefore a special form of a truncatedpyramid. A pyramid is… … T, a truncated pyramid ; ABCXYZ, a frustum of the pyramid V-ABC;VV, the altitude of the pyramid ; ABC, XYZ, the lower and upperbases of the frustum ; XX , the altitude of the frustum. 296 SOLID GEOMETRY. [Bk. VII. Proposition VI. 402. Theorem. Parallel transverse sections of a pyrami-dal space are…
Geometry
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