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 93
. XXVIII. THEOR. IN equal circles, equal straight lines cut off equalcircumferences, the greater equal to the greater, andthe less to the less. Let ABC, DEF be equal circles, and BC, EF equal straightlines in them, which cut off the two greater circumferencesBAC, EDF, and the two less BGC, EHF; the… … from their centres are equal; therefore BK, KC are equal toEL, LF; and the base BC is equal to the base EF; thereforethe angle BKC is equal ^ to the angle ELF: but equal angles b 8.1.stand upon equal <= circumferences, when they are at the cen-c26.3.tres; therefore the circumference BGC is equal…
Euclid's Elements · Mathematics, Greek · Geometry
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