The elements of Euclid for the use of schools and colleges; comprising the first six books and portions of the eleventh and twelfth books; (1903)
Euclid, Todhunter, I. (Isaac), 1820-1884, ed. edt, Simson, Robert, 1687-1768, ed. edt · London; New York, Macmillan · leaf 214
. (2) If through the points A, B, C, D, E, F there be drawntangents to the circle, a regular hexagon will be describedabout the circle, as may be shewn from what was said of thepentagon; and a circle may be inscribed in a given regularhexagon, and circumscribed about it, by a method like thatused… … Let AC be the side of an equilateral A inscribed in thecircle, [IV. 2. and AB the side of a regular pentagon inscribed in it. [IV. IL Then, of such equal parts, as the whole circumferenceABCDF contains fifteen, the arc ABC, which is the third part of the whole, contains five,and the arc AB, which…
Euclid's Elements · Geometry · Mathematics, Greek
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