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 49
.1. PROP. XLV. PROB. TO describe a parallelogram equal to a given rec-tilineal figure, and having an angle equal to a givenrectilineal angle. a42.1. b44.1. Let ABCD be the given rectilineal figure, and E the givenrectilineal angle. It is required to describe a parallelogram equalto ABCD, and having… … OF EUCLID. 47 to the triangle DBC, having the angle GHM equal to the angle Book I.E ; and because the angle E is equal to each of the angles FKH, *—v—GHM, the angle FKH is equal to GHM ; add to each of thesethe angle KHG ; therefore the angles FKH, KHG are equal tothe angles KHG, GHM; but FKH, A ^…
Euclid's Elements · Mathematics, Greek · Geometry
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