Find the curved surface area of a cone of radius 3cm and slant height 7cm (\(take \pi = \frac{22}{7}\)
A
\(22cm^2\)
B
\(44cm^2\)
C
\(66cm^2\)
D
\(132cm^2\)
E
\(198cm^2\)
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
Curved surface area of a cone \(= \pi rt\\
\frac{22}{7}\times 3\times 7 = 66cm^2\)
Source: Myschool Past Questions Archive (Record #26369)