Gore, James Howard, 1856-1939 · New York, Longmans, Green, and co. · leaf 198
sums of these prisms are always equiva-lent, their limits are equivalent, or vol. V-ABC = vol. V-ABC. Q.E.D. §464.] POLTEDRONS, CYLINDERS, AND CONES. 185 463. Since any pyramid can be divided into triangular pyra-mids by passing planes through the vertex and the diagonalsof the base, it follows… … Let V-ABC be a triangular pyramid with h for its alti-tude and ABC its base. To prove that vol. V-ABC = \ h x ABC. Upon the base ABC construct the prism ABC-D, havingits lateral edges parallel to VB, and its altitude equal to h, orthat of the pyramid. Draw AD, the diagonal, and it will divide (by…
Geometry
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