Question

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

Answer 1

Answer:

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.