Suppose you have a cone with slant height='l' and base radius 'r' and perpendicular height 'h' Curved surface area of COne=pi*r*l =pi*r*(squareroot(r2+h2))
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find the surface area of the cone and add it to the surface area of the base so the formula would be pi radius s plus pi radius squared
Calculate them and compare.
i have an answer for both a frustum of a pyramid and a frustum of a cone which do you need frustum of a cone just give both of them
pi * r * s, where r is the radius of the base and s is the distance along the edge of the cone from the top to the base (not the height).
Unless the context suggests otherwise, the two are the same. However, you may, for example, be required to find the curved surface area of a cylinder and [then] the total surface area. In that case the total surface area would include the areas of the two end faces.