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 89
figure about which it is described, each through each. III. A rectilineal figure is said to be inscribed ina circle, when all the angles of the inscrib-ed figure are upon the circumference of thecircle. IV. A rectilineal figure is said to be describedabout a circle, when each side of the…
Euclid's Elements · Geometry · Trigonometry
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