Csa of frustum

1.	Csa of frustum
Answer» In geometry, a frustum is the portion of a solid (normally a cone or pyramid) that lies between one or two parallel planes cutting it.If we cut a right circular cone by a plane parallel to its base, the portion of the solid between this plane and the base is known as the frustum of a cone.Curved Surface Area (CSA) = pi * l(R + r)wherer = radius of smaller circleR = radius of bigger circlel = slant height of the frustum

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