Babbit, Arthur B · New York, H. Holt and company · leaf 189
Fig. 97 … The fixed point through which the elements pass iscalled the vertex. A cone is a solid boundedby a conical surface and aplane surface cutting all theelements of the conical sur-face. See Fig. 98. The altitude of a cone isthe perpendicular distancebetween the vertex and theplane of the base. ^^^- ^^…
Mechanical drawing
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