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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 57

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 57 — iT a given point ( ) in a given Jiraight line (^^^»»—■),to make an angle equal to a given re51 ilineal angle (.^^j^ )• Draw ———. between any two pointsin the legs of the given angle. Conftruct v (pr. 22.) fo that —^^^ = . and Then jgj^ = ^J^ (pr. 8.). Q. E. D. 24 BOOK I. PROP. XXir. THEOR.

Euclid's Elements · Geometry

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