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 230
B, C. SOLUTION L Take F such that BC : BA+AC : BA-AC : F, thenF is eitherthe sum or the difference of BD, DC, the segments of the base, (5.).If F be greater than BC, F is the sum, and BC the difference of BD,DC; but, if F be less than BC, BC is the sum, and F the differenceof BD and DC. In either…
Euclid's Elements · Geometry · Trigonometry
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