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Q:

What is total surface area of a cone where, r’ is radius and ‘l’ is slant height?   

  • 1
    πr (l + r)
  • 2
    2πr (l+r)
  • 3
    πrl
  • 4
    $$ 2πrl^2$$
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Answer : 1. "πr (l + r) "

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