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 66
umference, the greatest is that inwhich the centre is, and the other part of that diameteris the least; and, of any others, that which is nearer to theline passing through the centre is always greater than onemore remote from it: And from the same point there canbe drawn only two straight lines… … <6 ELEMENTS straight lines FB,FC, FG, &c. that can be drawn from F to the cir-cumference, FA is the greatest, and FD^ the otlier part of the diame-ter AI), 18 the least: and of the others, FB is greater than FC, andFC than FG. Join BE, CE, GE ; and because two sides of a triangle are…
Euclid's Elements · Geometry · Trigonometry
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-332-223.webp)
