Mathematics in Ancient and Medieval India c6.s9.105

c6.s9.105

The formula of the *volume of a frustum* appears explicitly in India first in the works of Śrīdhara.² The frustum is the part of a solid figure such as a cone or a pyramid, cut off by a plane parallel to the base. If d and D denote the diameters of the upper and lower face of the frustum of a right circular cone and h its height, then its volume V will be given by,