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 86
I I I + - +Q.E. D. 54 BOOK II. PROP. II. THEOR. … Draw I I F a Jlraight line be dividedinto any two parts ■■ * >9the fquare of the whole lineis equal to the fum of the rectangles contained by the whole line and each of its parts.
Geometry
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
