Find the curved surface area of a cone of radius 3cm and slant height 7cm (\(take \pi = \frac{22}{7}\)
- \(22cm^2\)
- \(44cm^2\)
-
\(66cm^2\)
- \(132cm^2\)
- \(198cm^2\)
The correct answer is: C
Explanation
Curved surface area of a cone \(= \pi rt\\\frac{22}{7}\times 3\times 7 = 66cm^2\)