Maths-
General
Easy

Question

A cone has a base diameter of 6 cm and a vertical height of 8 cm. Calculate the volume of the cone in cubic centimetres.

  1. 74.4 cm3
  2. 75.4 cm3
  3. 74.5 cm3
  4. 75 cm3

hintHint:

Volume of a cone = (1 third)πr2h

The correct answer is: 75.4 cm3


    We have given the dimensions of a cone
    Diameter = 6 cm
    Radius , r = 6 over 2 = 3 cm
    Height , h = 8 cm
    We have to find the volume of the given cone
    We know that
    Volume of a cone = (1 third)πr2h

    = (1 third)(3.14)(3 x 3)(8)

    = (1 third)(3.14) (9 x 8)

    = (1 third)(3.14)(72)

    = 226.08 / 3

    = 75.4 cm3
    Therefore, the volume of cone is 75.4 cm3
    Therefore correct option is b) 75.4 cm3

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