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 73
BOOK I. PROP. XL. THEOR. QUAL trian-gles 41 ( and L ) … on equal bafes, and on thefame Jide, are between thefame parallels. If ..... which joins the vertices of triangles be not 11 ■ , draw —— || —— (pr. 31.), meeting Draw Becaufe (conft.) . -- = > , a part equal to the whole, which is abfurd.1 -f|- -^——: and in the fame manner it can be…
Geometry
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