Cone slant height and volume from curved area

Cone slant height and volume from curved area

Secondary 2
4 marks
TGM Original Questions

A solid cone has radius 5 cm and curved surface area \(65\pi\text{ cm}^2\). Find

  1. its slant height,[2]
  2. its volume.[2]

Solution:

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Answer:(a) \(13\) cm (b) \(100\pi\text{ cm}^3\) (about \(314.2\text{ cm}^3\)).

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