Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 361
BOOK VII 351 749. Defs. A pyramid is triangular, quadrangular, etc., ac-cording as its base is a triangle, a quadrilateral, etc. 750. Questions. How many faces has a triangular pyramid ? a tet-rahedron ? Can these terms be used interchangeably ? How many dif-ferent bases may a triangular pyramid…
Geometry, Plane · Geometry, Solid
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