The slant height of a frustum of a cone is 6 \(cm\) and the radii of its ends are 5 \(cm\) and 1 \(cm\). Determine its curved surface area.
Answer:
Curved surface area of a frustum of a cone is given by sq. units
The curved surface area of a frustum of a cone \(=\) \(cm^2\)
[Note: Enter the answer upto two decimal places.]