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689

Q:

The radius of a cone is 20 cm and height is 21 cm, the total surface area of the cone is in square cm:

  • 1
    3080
  • 2
    3160
  • 3
    2920
  • 4
    3240
  • Show Answer
  • Workspace

Answer : 1. "3080"
Explanation :

$$ {πr^2+πrl}$$


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