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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 95

An illustration from The first six books of the Elements of Euclid, in which coloured diagrams and symbols are used instead of letters .., 1847, leaf 95 — fquares of the unequal parts are together double the fquares of half the line, *■ and of the part between the points offeSlion. - + 2 = 2 » + 2 … Make 1 Draw — II _L and = or and

Geometry

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