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).
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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
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))
The formula will depend on what it is that you are trying to find: the volume or the surface area.