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 216
because the solid angle at B is contain-ed by three plane angles CBA, ABF,FBC, of which any two are greater»than the third, the angles CBA, ABFare greater than the angle FBC: forthe same reason, the two plane anglesat each of the points C, D, E, F, viz. theangles which are at the bases of… … OF EUCLID. ^]s greater than all the angles of the polygon : and because all the Book XLangles of the triangles are together equal to twice as many right v -y^angles as there are triangles ^ ; that is, as there arc sides in the b 32.1.polygon BCDEF : and that all the angles of the polygon, toge-ther…
Euclid's Elements · Mathematics, Greek · Geometry
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
