Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 126
hich should pass through B ; \ *\ A r> N \ \ hence, it is perpendicular to the plane (\)v\\ 1). Cor. It from any point as H,any oblique linos, as HEF, HDC,be drawn, the parallel planes willcut these lines proportionally. For, draw IIAB perpendicularto the plane MN: then, by thetheorem, it will… … Then, HA ITB : HE HE, and HA IIP HD HC, hence, HE : HE : : HD HC 11* GEOMETRY. BOOK VI OF SOLIDS. DEFINITIONS 1. Ever} solid bounded by planes is called a polyadnm. 2. The planes which bound a polyedron are called facsa.The straight lines in which the faces intersect each other,are called the edges…
Geometry · Plane trigonometry
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
