Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 136
it; and the area of each rectan-gle is equal to the product of its base B Uby its altitude. But the altitude of each rectangle is equal tothe altitude of the prism : hence, their areas, that is, the con-vex surface of the prism, is equal to (AB + BC + CD+DE + EA) x A F; that is, equal to the… … Let DB be a cylinder, and AB thediameter of its base : the convex sur-face will then be equal to the altitude4 /) multi] lied by the circumferenceof the base. Tor, suppose a regular prism to beinscribed within the cylinder. Then,the convex surface of the prism will beequal to the perimeter of the…
Geometry · Plane trigonometry
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