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 24
i AC cut (3.1.) off AE equal t.oAD; join DE, and upon it describe(1. 1.) an equilateral triangle DEF;tlien join AF; the straight line APbisects the angle BAC. Because AD is equal to AE, andAF is common to the two trianglesDAF, EAF; the two sides DA, APare equal to the two sides EA, AF,each to each;… … 24 ELEMENTS
Euclid's Elements · Geometry · Trigonometry
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