Multiple choice

The volume of a right circular cone is 480π cm3. If the area of its base is 144π cm2, what is the vertical height of the cone?

  1. 10 cm

  2. 12 cm

  3. 14 cm

  4. 16 cm

  5. None of these

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A Correct answer
Explanation

Volume of the cone = 480π cm3

1/3*π*r2*h = 480π

Now, it is given that area of base(πr2) = 144π cm2

So, 1/3*144π*h = 480π

h = 10 cm