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 53
•om any point (/ ) A within a triangle Jiraight lines bedrawn to the extremities of one fide(_.... ), thefe lines tnujl be toge-ther lefs than the other twofdes, buttnujl contain a greater angle. … Produce mm—mm -f- mmmmmm C «-^— ■» (pr. 20.), add ..... to each,-\- __.-.. C ■■—■ -|- ...... (ax. 4.) In the fame manner it may be mown that .— + C h which was to be proved. Again and alfo 4c4 c4
Geometry
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
