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 118
ther: but equalangles stand upon equal « circumfe-rences ; therefore the six circumfe-rences AB, BC, CD, DE, EF, FA are equal to one another:and equal circumferences are subtended by equal * straightlines ; therefore the six straight lines are equal to one another,and the hexagon ABCDEF is… … OF EUCLID. iir and the angle FED stands upon the circumftiience FABCD, and BookIV.the angle AFE upon EDCBA; therefore the angle AFE is *—v—equal to FED : in the same manner it may be demonstrated thatthe other angles of the hexagon ABCDEF are each of themequal to the angle AFE or FED; therefore the…
Euclid's Elements · Mathematics, Greek · Geometry
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