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The elements of Euclid : viz, the first six books, together with the eleventh and twelfth : the errors, by which Theon, or others, have long ago vitiated these books, are corrected, and some of Euclid's demonstrations are restored : also, The book of Euclid's data, in like manner corrected (1834)

Euclid, Euclid, Simson, Robert, 1687-1768 · Philadelphia : Desilver & Thomas · leaf 220

An illustration from The elements of Euclid : viz, the first six books, together with the eleventh and twelfth : the errors, by which Theon, or others, have long ago vitiated these books, are corrected, and some of Euclid's demonstrations are restored : also, The book of Euclid's data, in like manner corrected, 1834, leaf 220
ese triangles erect pyramids having the same vertexwith the cone. Therefore each of these pyramids is greater thanthe half of the segment of the cone in which it is, as before wasdemonstrated of the prisms and segments of the cylinder: andthus dividing each of the circumferences into two equal… … 218 THE ELEMENTS OF EUCLID. BOOK Xlly^

Mathematics, Greek · Geometry · Trigonometry

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