Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 225
size, known as great circles. Any diameter of the spheremay be taken as its axis. In the solution of problems involv-ing the sphere, advantage is usually taken of some or all ofthese properties. The solution thus becomes a particular solu-tion, and the sphere, in consequence, is not a good surface…
Geometry, Descriptive
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