Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 153
52 GEOMETRY Sjlidity of the Cone … THEOREM XVIII. The solidity of a cone cs equal to one third of the product of thebase multiplied by the altitude. Let ABCDE be the base, S thevertex, and SO the altitude of thecone : then will its solidity be equalto one third the product of its baseby its altitude SO. Inscribe in the base of the…
Geometry · Plane trigonometry
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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-100-222.webp)
