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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 222

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 222
C E … G K x Iv X nx K-z\ is: upon each of these triangles erect a pyramid having the samevertex with the cone; each of these pyramids is greater than thehalf of the segment of the cone in which it is: and thus dividingeach of these circumferences into two equal parts, and from thepoints of division…

Mathematics, Greek · Geometry · Trigonometry

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