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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 290

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 290
angles EMBjLNG having their sides proportionals, are (5.6.) equi-angular and similar to one another: therefore the pyramids whichhave the triangles EAB, LEG for their bases, and the points M,N for their vertices, are similar (l I. def. 11.) to one another, fortheir solid angles are (b. 11.) equal,…

Mathematics, Greek · Geometry · Trigonometry

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