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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 76

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 76
of them is the greater; let BGG be the greater: and at the pointG, in the straight line BG, make (23. 1.) the angle BGK equal tothe angle EHF; but equal angles stand upon equal circumferences(26. 3.) when they are at the centre; therefore the circumferenceBK is equal to the circumference EF: but EF…

Mathematics, Greek · Geometry · Trigonometry

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