The radius of a right circular cone is 30cm and its height is 4cm, the...

MATHEMATICS
POST UTME UNILORIN

The radius of a right circular cone is 30cm and its height is 4cm, the curved surface of the cone will be

  • (a) 12sq.cm
  • (b) 15sq.cm
  • (c) 18sq.cm
  • (d) 21sq.cm

Correct Answer: (b) 15sq.cm

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