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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 327

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 327
F, EG together have to EG the third side the ratio of FE toEM, that is, of H to K. In like manner, the sides EF, FO toge-ther have to EO the ratio which H has to K. PROP. XLIX. 46. If a triangle has one angle given, and if the sidesabout another angle, both together, have a given ratioto the third…

Mathematics, Greek · Geometry · Trigonometry

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