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21 April, 21:19

A cone has a base radius 10 cm and slant height 18 cm.

Work out the surface area of the cone.

Give your answer in terms of pi (π).

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Answers (1)
  1. 21 April, 21:30
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    Surface Area of Cone = πrl

    = π*10*18 = 180π

    Surface Area = 180π cm²
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