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 82
Q E. D. H 5° BOOK I. PROP. XLVIIL THEOR. … F the fquareof one fide (—;—) of a triangle isequal to the fquares of theother two fides ( n and ), the angle
Geometry
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
