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 276
Draw and and and 5 refolving the polygons into triangles.Then becaufe the polygons are limilar,and — … ■■■•■■««««■ and ♦=♦ are fimilar, and ^^ ^ ^J(B. 6. pr.6); but ^F^ = w becaufe they are angles of fimilar polygons; therefore the remainders ^^ and ^k hence nmmmmmmmmm * ■■>..■«•• \\ -_..._-__ * on account of the fimilar triangles, are equal ; * ? 244 BOOK VI. PROP. XX. THEOR.and --. : :: I on…
Euclid's Elements · Geometry
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