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20 April, 12:59

The height of a right cylinder is 3 times the radius of the base. The volume of the cylinder is 247 cubic units.

What is the height of the cylinder?

A. 2 units

B. 4 units

C. 6 units

D. 8 units

+3
Answers (1)
  1. 20 April, 14:17
    0
    8.91 units.

    Step-by-step explanation:

    If the height = h then the radius = h/3.

    The volume = 247 = π r^2 h

    247 = π (h/3) ^2 h

    (h/3) ^2 h = 247/π

    h^3 / 9 = 247 / π

    h^3 = 9*247 / π

    h = 8.91 units.
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