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 \(198cm^2\)
waec 1998mathematics

The correct answer is C. \(66cm^2\)

Curved surface area of a cone \(= \pi rt\\

\frac{22}{7}\times 3\times 7 = 66cm^2\)

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