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 115
the angle FKC is equal to the angle FLC, and that theangle HKL is double of the angle FKC, and KLM double of FLC,as was before demonstrated, the angle HKL is equal to KLM:and in like manner it may be shown, that each of the angles KHG,HGM, GML is equal to the angle HKL or KLM: therefore thefive… … 114Book IV. THE ELEMENTS PROP. XIII. PROB. A TO inscribe a circle in a given equilateral and equi-angular pentagon. Let ABCDE be the given equilateral and equiangular penta-gon ; it is required to inscribe a circle in the pentagon ABCDE.a 9.1. Bisect 2 -.he angles BCD, CDE by the straight lines CF,…
Euclid's Elements · Mathematics, Greek · Geometry
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