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 93
BOOK II. PROP. VII. THEOR. F a Jiraight line be dividedinto any two parts mi ,the fquares of the whole lineand one of the parts areequal to twice the reSlangle contained bythe whole line and that part, togetherwith the fquare of the other parts. wmw—— 2 -I- —— 2 ■■ 61 DefcribeDraw —i … , (pr. 46, B. i.)- (pott. 1.), (pr. 31, B. i.)- = I (Pr- 43> B. 1.), * to both, (cor. 4, B. 2.) I (cor. 4, B. 2.) I + ■ + — +
Geometry
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