An elementary treatise on geometry : simplified for beginners not versed in algebra (1833)
Grund, Francis J. (Francis Joseph), 1805-1863 · Boston : Carter, Hendee & Co. · leaf 129
ne of these triangles,is equal to the radius, om^ of the inscribed circle), anddividing the product by 2; therefore the area of thewhole polygon ABCDEF may at once be found by multi-plying the sum of all the sides by the radius of the in-scribed circle, and dividing the product by 2.* * Instead of… … If you bisect each of the arcs ABy BCj CD, Sfc.^subtended by the sides AB, BC, CD, S^c, of a regularpolygon inscribed in a circle ; and then to the points ofdivision, m, n, o, p, q, r, draio the lines Am^ vaB, Bn, nC,Co, Sfc; what do you observe with regard to the regularpolygon^ AmBnCoD^E({Fx,…
Geometry, Plane
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