Elements of geometry : containing the first six books of Euclid, with a supplement on the quadrature of the circle, and the geometry of solids : to which are added, Elements of plane and spherical geometry (1826)
Playfair, John, 1748-1819, Euclid · Philadelphia : Marot & Walter · leaf 186
t, let BAC,be that angle which is not less than either of the other two, and isgreater than one of them, DAB; and at thepoint A in the straight line AB, make in theplane which passes through BA, AC, theangle BAE equal (23.1.) to the angle DAB;and make AE equal to AD, and throughE draw BEC cutting… … 486 SUPPLEMENT TO THE ELEMENTS (4.1.) tothe base BE. And becauseBD,DC are ^eater (20. 4.) thanCB, and one of them Bl) has been proved equal to BE, a pari of CB,therefore the othiT DC is a;reater than the remaining part EC. Andbecause DA is equal to AE,and AC common, but the base DC greaterthan the…
Euclid's Elements · Geometry · Trigonometry
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