Gore, James Howard, 1856-1939 · New York, Longmans, Green, and co. · leaf 156
ntagon; and so on. Q.E.D. § 310.] REGULAR POLYGONS AND CIRCLES. 143 318. COR. Since a circle may be regarded as a regular poly-gon of an infinite number of sides, it follows that the circle is themaximum of all isoperimetric plane figures. EXERCISES. 1. Of all triangles of given base and area,the… … PROPOSITION XVII. THEOREM. 319. The sum of the distances from two fixed points on thesame side of a straight line to the same point in that line is aminimum when the lines joining the fixed points with the samepoint are equally inclined to the given line. C F.
Geometry
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![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-97-193.webp)
