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 161
N a given triangle A to in- fer i be a circle. Bifedl J and ^V. (B. i.pr. 9.) by and •—■^— from the point where thefe linesmeet draw --■-■■■ ?and •••■• refpectively per-pendicular to ————, … and y 1 In M A > common, .*. ~ ■■ and - *•— (B. 1. pr. 4 and 26.) In like manner, it may be mown alfothat ..—.—..- = —- , ■*#•••»•■•• hence with any one of thefe lines as radius, defcribe and it will pafs through the extremities of the o other two; and the fides of the given triangle, being…
Geometry
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