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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 264

An illustration from 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, leaf 264 — Draw any ftraight linemake — … and bifed and from the point of bifedtion as a centre, and half the line as a radius, defcribe a femicircledraw —^—^— JL ——— cs is the mean proportional required. Draw and

Euclid's Elements · Geometry

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