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 289
O produce a givenjlraight line (— ),fo that the recJangle con-tained by the fegmentsbetween the extremities of the givenline and the point to which it is pro-duced, may be equal to a given area,i. e. equal to the fquare on … Make — , and draw —-■«—drawwith the radiusmeeting Then —— * and ■, defcribe a circle■ produced. X But 1 (B. 2. pr. 6.) = \ .........9 _|_ _ 2 (B. 1. pr.47.) and * + from both take X but = + 2« = the given area. C^E. D. L L 258 BOOK VI. PROP. XXX. PROB.
Geometry
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
