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 287
O divide a givenJlraight line ( ) J fo that the rec-tangle contained by its segmentsmay be equal to a given area, mnot exceeding the fauare ofhalf the line. … Let the given area be = Bifedt «.»—make ••*and if -—»» or the problem is iblved. But ifmuft % then (hyp.)- Drawmake -with ^ •«■»•■»■» or as radius defcribe a circle cutting the given line ; draw Then X (B. 2. pr. 5.; - But + (B. 1. pr. 47); 256 BOOK VI. PROP. XXVIII. PROB. .-. X + « I * j from…
Geometry
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