Smith, David Eugene, 1860-1944 · Boston, New York [etc.] Ginn and Company · leaf 285
ble also to inscribe a regular polygon of 17 sides, andhence polygons of 2n • 17 sides,or 17, 34, 68, • • •, sides, and also3-17=51 and 5-17=85 sides,by the use of the compassesand straightedge, but the proofis not adapted to elementarygeometry. In connection with the studyof the regular polygons… … Roman Mosaic found atPompeii LEADING PROPOSITIONS OF BOOK V 275 •.♦V-JMrJ,**,*.. Mosaic from Damascus uses such materia], care should be taken to exemplifygood art. For example, the equilateral triangle and itsrelation to the regular hex-agon is shown in the pic-ture of an ancient Romanmosaic floor…
Geometry
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