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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 271

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 271 — Refolve the given figure into triangles bydrawing the lines . -. and At the extremities of ^ = f^V and again at the extremities of and ^k — … ^ — ^\ T in like manner make* = \/andV = V Th en

Geometry

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