Smith, David Eugene, 1860-1944 · Boston, New York [etc.] Ginn and Company · leaf 233
ms are given in order that the teachermay have examples from which to select. The best wayof using this material is to offer it as supplementarywork, using much or little, as may seem best, thus givingto it a freshness and interest that some have trouble inimparting to the regular book work. The… … It might be said, for example, that in planning a Gothic win-dow this drawing is needed. The arc BC is drawn with A as acenter and AB as a radius. The small arches are described withA, D, and B as centers and iD as a radius.The center P is found by taking A and Bas centers and AE as a radius. How…
Geometry
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