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 325
B D … because BA is less the side AC; take a straight line DE given in position and mag-nitude, and make the angle DEF equal to the given angle ABC;therefore EF is given (32. dat.) in position; and because theratio of BA to AC is given, as BA toAC, so make ED to DG; and becausethe ratio of ED to DG is…
Mathematics, Greek · Geometry · Trigonometry
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