The builder's dictionary, or, Gentleman and architect's companion : explaining not only the terms of art in all the several parts of architecture, but also containing the theory and practice of the various branches thereof ... : also necessary problems in arithmetic, geometry, mechanics, perspective, hydraulics, and other mathematical sciences : together with the quantities proportions, and prices of all kinds of materials used in building ... (1734)
Toms, W. H. (William Henry), ca. 1700-ca. 1750, Devoto, John, fl. 1719-1752 · London : Printed for A. Bettesworth and C. Hitch ..., and S. Austen ... · leaf 211
olygon, and whofeSides are plane Triangles ;the feveral Tops meeting toge-ther in one point. The Properties of a Pyramidare, 1. All Pyramids and Cones{landing on the fame Bafe, andhaving the lame Altitude, aredemonftrated to be equal. 2. A Triangular Pyramid isthe third part of a Prifm iland-ing on… … 4. If a Pyrapjid be cut by aPlane a be, parallel to its BafeABC, tV0 former Plane or Bafewill be fimilar to the latter. 5. All Pyramids, Prifms, Cy- linders, ES^c. are in a Ratio com-pounded of their Bafesand Alti-tudes, the Bafes therefore beingequal, they are in Proportion totheir Altitudes 5 and…
Architecture · Building
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