Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 474
. Cor. ni. The volume of a spherical sector isequal to the product of its base and one third the radiusof the sphere. Outline of Proof Let V denote the volume generated by polygon OA^B^c\ v thevolume generated by polygon OABC, s the area of the surfacegenerated by broken line abc, s thearea of the… … • . V a- a a Then by steps similar to § 996, b and c, and § 997, thevolume of the sphericqj sector generated by circular sectorAOC= Z -^R. 1005. Cor. IV. If V denotes the volume of a sphericalsector, z the area of tlw zone forming its base, H the alti-tude of the zone, and R the radius of the…
Geometry, Plane · Geometry, Solid
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