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The first six books of the elements of Euclid, in which coloured diagrams and symbols are used instead of letters for the greater ease of learners (1847)

Byrne, Oliver, Whittingham, Charles, 1795-1876, Chiswick Press · London : William Pickering · leaf 288

An illustration from The first six books of the elements of Euclid, in which coloured diagrams and symbols are used instead of letters for the greater ease of learners, 1847, leaf 288 — O divide a givenJlraight line fo that the rec-tcuigle cojitained by its segmentsmay be equal to a given area,not exceeding the fquare ofhalf the line. Let the given area be :=Bifedl — … or makeand if But ifmuft ■ ■■■ » **** ymmmm*** ■■■1 •; . 2 the problem is folved. 9 ■II ^ -4;- ••■»■■■■••■ 9 then ■■■ (hyp.). Draw make -with ^-i ■ ■■■■IMHM I or as radius defcribe a circle cutting the given line ; draw Then •••— ^ wiMMaBB.-a- ^ (B. 2. pr. 5.) = .2 But + (B. I. pr. 47); 256 BOOK…

Euclid's Elements · Geometry

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