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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 72

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 72
See Note. BOOK III. THE ELEMENTS OF EUCLID. (i9 Again; let E the centre of the circlebe without the angle BDC, and join DEand produce it to G. It may be demon-strated, as in the first case, that the angleGEC is double of the angle GDC, andthat GEB a part of the first is double ofGDB a part of the…

Mathematics, Greek · Geometry · Trigonometry

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