The Curved Surface Area (CSA) of a frustum of | vedclass

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(A) frustum of a cone is formed when a cone is cut by a plane parallel to its base.Let $r_{1}$ and $r_{2}$ be the radii of the two circular ends of th

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$\pi l(r_{1} + r_{2})$

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(A) frustum of a cone is formed when a cone is cut by a plane parallel to its base.Let $r_{1}$ and $r_{2}$ be the radii of the two circular ends of the frustum,and $l$ be the slant height of the frustum.The formula for the Curved Surface Area $(CSA)$ of a frustum of a cone is derived from the difference between the lateral surface area of the original cone and the smaller cone removed from the top.The formula is given by: $CSA = \pi l(r_{1} + r_{2})$.

The Curved Surface Area $(CSA)$ of a frustum of a cone is given by:

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