Legendre, A. M. (Adrien Marie), 1752-1833, Brewster, David, Sir, 1781-1868, Davies, Charles, 1798-1876 · New York, Wiley & Long · leaf 140
ht angles. Schohum. Tins (i«;iiionslralion i> lounded on the suppositionthat the solid angle is convex, or that the plane of no one sur-face prfMluced can ever nnct the s(jlid angle ; if it were other-wise, the sum of the jdanc angles would no longer be limit(»<l,and might be of any… … HÙ GEOMETRY. Let the angle ASC=DTF,theangle ASB=:DTE, and the an-gleBSC=ETF; then will theinclination of the planes ASC,ASB, be equal to that of theplanes DTP, DTK Having taken SB at pleasure,draw BO perpendicular to theplane ASC ; irom the point O, at which the perpendicularmeets the plane, draw…
Trigonometry · Geometry
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
