Legendre, A. M. (Adrien Marie), 1752-1833, Brewster, David, Sir, 1781-1868, Davies, Charles, 1798-1876 · New York, Wiley & Long · leaf 168
168 GEOMETRY. … 8. The sphere is a solid terminated by a curved surface, allthe points of which are equally distant from a point within,called the centre. The sphere may be con-ceived to be generated by therevolution of a semicircleDAE about its diameter DE :for the surface described inthis movement, by the…
Trigonometry · Geometry
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