Legendre, A. M. (Adrien Marie), 1752-1833, Brewster, David, Sir, 1781-1868, Davies, Charles, 1798-1876 · New York, Wiley & Long · leaf 175
BOOK VIII. 17. PROPOSITION VII. THEOREM.Every section of a spherej made by a plane, is a circle. Let AMB be a section, made by a])lanc, in the sphere whose centre is C.iVom the point C, draw CO perpen-dicular to the plane AMB ; and dirtb-rent lines CM, CM, to ditierent pointsof the curve AMB, which…
Trigonometry · Geometry
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