The first six books of the Elements of Euclid, in which coloured diagrams and symbols are used instead of letters .. (1847)
Euclid, Byrne, Oliver · London, W. Pickering · leaf 94
F ajlraight line be divided into any two parts , the fquare of thefum of the whole line and any one of its parts, is equal to four times the reclangle contained by the whole line, and that part together with the fquare of the other part. — + Produce and make Conftrudt.draw (pr. 46, B. 1.); … (pr. 7, B. 11.) = 4 — + Q. E. D. BOOK II. PROP. IX. THEOR. 63 F a ftraightline be dividedinto two equalparts mm —.and alfo into two unequalparts , the
Geometry
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