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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 133

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 133
130 THE ELEMENTS OF EUCLID. BOOR VI. to the equal angles are homologous sides, that is, arethe antecedents or consequents of the ratios. Let ABC, DCE be equiangular triangles, having the angleABC equal to the angle DCE, and the angle ACB to the angleDEC, and consequently (32. 1.) the angle BAC…

Mathematics, Greek · Geometry · Trigonometry

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