The first six books of the elements of Euclid, in which coloured diagrams and symbols are used instead of letters for the greater ease of learners (1847)
Byrne, Oliver, Whittingham, Charles, 1795-1876, Chiswick Press · London : William Pickering · leaf 176
BOOK W. PROP. XV. PROB. O infcribe an equilateral and equian-gular hexagon in a gircen circle H3 O- From any point in the circumference ofthe given circle defcribe ^ J palling o through its centre, and draw the diameters and draw ...._»■_ J .-..-..-^ .........J &c. and the required hexagon is… … Since of the circles. palles through the centres
Euclid's Elements · Geometry
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