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 (1806)
Euclid, Simson, Robert, 1687-1768, Euclid. Elements. Book 11-12. English. 1806, Euclid. Data. English. 1806, Simson, Robert, 1687-1768. Notes, critical and geometrical. 1806, Simson, Robert, 1687-1768. Elements of plane and spherical trigonometry. 1806 · Philadelphia : Published by Mathew Cary, and sold by J. Conrad & Co., S.F. Bradford, Birch & Small, and Samuel Etheridge, printed by T. & G. Palmer ... · leaf 185
ht20. (i. lines be proportionals, as the first is to the third, so is « the OF EUCLID. 18; figure upon the first to the similar and similarly described figure Book Vtupon the second; therefore as BC to CF, so is the rectilineal ^—v—^figure ABC to KGH : but as BC to CF, so is f the parallelogram f… … gram BE; therefore the rectilineal figure KGH is equal ^ to the h 14 5.parallelogram EF: but EF is equal to the figure D ; whereforealso KGH is equal to D ; and it is similar to ABC. Thereforethe rectilineal figure KGH has been described similar to thefigure ABC, and equal to D. Which was to be…
Euclid's Elements · Mathematics, Greek · Geometry
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