If the volume of a cylinder is 256π $$cm^3$$​ and the radius of its base is 8 cm, then find the height of the cylinder.

Correct option is B

Given:

Volume ($$V$$) = 256π $$cm^3$$ 

Radius ($$r$$) = 8cm

Formula used: 

Volume of the cylinder:

​$$V = π r^2 h$$ 

Solution:

height ($$h$$): = $$\frac{V}{π r^2}$$ 

Substitute values:

$$h = \frac{256π}{π (8^2)}$$ 

= $$\frac{256}{8\times 8}$$ =4 cm

Thus the correct answer is (B)