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 130
OF GEOMETRY. BOOK VI. 1^ … •aaram: wlrtrcfore DH is equal (34.1.) to¥G, and HK to GB: and because HE isparallel to KG, one of the sides of the tri-angle DKC,CE: ED •• (2. 6.) KH : HD :But KH=BG, and HD=GP; thereforeCE : ED :: BG*: GF : Again, becauseFD is parallel to EG, one of the sides ofthe triangle AGE, ED : DA : GF : FA…
Euclid's Elements · Geometry · Trigonometry
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