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 116
f the equal angles in each, is common to both ; therefored 26. 1. tlie otiier sides shall be eciuali, each to each; wherefore theperpendicular FII is equal to tiie perpendicular FK: in the samemanner it may be demonstrated that FL, FM, FG are each pfthem equal to FII or FK; therefore the five… … OF EUCLID. 115 touch the straight lines AB, BC, CD, DE, EA, because the Book IV.angles at the points G, H, K, L, M are right angles ; and that ^—v—a straight line drawn from the extremity of the diameter of acircle at right angles to it, touches e the circle : therefore each e 15. 3-of the straight…
Euclid's Elements · Mathematics, Greek · Geometry
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.