Smith, David Eugene, 1860-1944 · Boston, New York [etc.] Ginn and Company · leaf 293
It is not very profitable, because it is manifestly un-real, to measure the parts of such figures, but it offersplenty of practice in numerical work. 282 THE TEACHING OF GEOMETRY … Choir of Lincoln Cathedral thedrals. For example, thispicture of the noble win-dow in the choir of LincolnCathedral shows the use ofthe square, hexagon, andpentagon. In the porch ofthe same cathedral, shownin the next illustration, thearchitect has made use of thetriangle, square, and penta-gon in…
Geometry
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