Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 107
too GEOMETRY. Proportions of Circles. until finally the polygon will becomeequal to the circle, and the perimeterwill coincide with the circumference.When this takes place, the line OHdrawn perpendicular to one of thesides, will become e^ual to the radiusof the circle.
Geometry · Plane trigonometry
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