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 343
nts H, K: because the angle ABC is given (3. def.), andthe ratio of AB to BC is given, the figure ABCD being given inspecies; therefore the parallelogram BG is given (3. def.) inspecies. And because upon the same straight line AB the tworectilineal figures BD, BG given in species are described, the… … 340 Euclids data. given, and therefore (1. 6.) the ratio of the straight line KB toBC is givenj and the ratio of BC to BA is given, wherefore theratio of KB to BA is given (9. dat.): and because the angle ABCis given, the adjacent angle ABK is givenj and the angle ABE isgiven, therefore the…
Mathematics, Greek · Geometry · Trigonometry
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