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 60
he squaresof HE and EG. Takeaway the square of EG,which is common to both,and the remaining rect-angle iiE.EF is equal tothe square of EIJ: ButBD is the rectangle eon-tained by BE and EF, because EF is equal to ED; therefore BD isequal to the square of EH; and BD is also equal to the…
Euclid's Elements · Geometry · Trigonometry
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