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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 341

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 341
338 EUCLID S DATA. … ratio of A B to EF is given, makethe ratio of K to L the samewith it; therefore L is given (2.dat.): and because the ratio ofBC to FG is given, make theratio of L to M the same: there-fore M is given (2. dat.): and Kisgiven, wherefore (l. dat.) the ra-tio of K to M is given: but the parallelogram…

Mathematics, Greek · Geometry · Trigonometry

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