Smith, David Eugene, 1860-1944 · Boston, New York [etc.] Ginn and Company · leaf 287
ern on page 276the dodecagon appearsas the basis, and the re-markable powers of the Arab designer are shown in theuse of symmetry without employing regular figures. 1This and the three illustrations following are from Kolb, loc. cit.2 This was in five colors of marble. AA I AA * AA▼ T AVT .▼▼ I AA… … Problem. Given the side and the radius of a regularinscribed polygon, to find the side of the regular inscribedpolygon of double the number of sides. The object of this proposition is, of course, to preparethe way for finding the perimeter of a polygon of 2 nsides, knowing that of nsides. The Greek…
Geometry
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