Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 128
ularprism ; if the base is a quadrangle, it is called a quadrangularprism; if a pentagon, a pentagonal prism ; if a hexagon ahexagonal prism ; <&c. 8. A prism whose base is a parallelo-gram, and all of whose faces are alsoparallelograms, is called a parallelopipe-don. If all the faces are… … 128 GEOMETRY. Of the Pyramid 10. A pyramid is a solid, formed byseveral triangles united at the samepoint S, and terminating in the differ-ent sides of a polygon ABCDE. The polygon ABCDE, is called thelise of the pyramid ; the point *S, iscalled the vertex, and the trianglesASB, BSC, CSD, DSE, and…
Geometry · Plane trigonometry
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