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 84
OF GEOMETRY. BOOK III. 8S been proved equal to BAD: therefore the remaining angle DBE isequal to the ande BCD in the alternate sej^ment of the circle.Wherefore, if a straight line,&c. Q. E. D. PROP. XXXIII. PROB. Upon a given straight line to describe a segment of a cir-cle, containing an angle…
Euclid's Elements · Geometry · Trigonometry
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