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 92
the extre-mity of a diameter at right angles to it, touches (Cor. 16. 3.) the cir-cle. Therefore the straight lines AB, BC, CA, do each of themtouch the circle, and the circle EFG is inscribed in the Uiangle ABC.Whieh was to be done. PROP. V. PROB, To describe a circle about a given triangle. Let… … 93 ELEMENTS
Euclid's Elements · Geometry · Trigonometry
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