The elements of Euclid : viz, the first six books, together with the eleventh and twelfth : the errors, by which Theon, or others, have long ago vitiated these books, are corrected, and some of Euclid's demonstrations are restored : also, The book of Euclid's data, in like manner corrected (1834)
Euclid, Euclid, Simson, Robert, 1687-1768 · Philadelphia : Desilver & Thomas · leaf 89
OP. VII. PROB. To describe a square about a given circle. Let ABCD be the given circle: it is required to describe asquare about it. Draw two diameters AC, BD, of the circle ABCD, at rightangles to one another, and through the points A, B, C, D, draw(17. 3.) FG, GH, HK, KF touching the circle; and… … BOOK IV. THE ELEMENTS OF EUCLID. 87
Mathematics, Greek · Geometry · Trigonometry
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