Question

8. If the height of a cylinder is equal to twice
the radius of its base, then the volume of
the cylinder is:​

Answer 1

Answer:

V = 2πr³

Step-by-step explanation:

• Let height of cylinder be H

and radius of base R

• As per the question,

H = 2R

• We know that formula of Volume of a cylinder is V = πr²h

• substituting values of height and base in above formula,

V = π * R² * 2R (since H = 2R)

• Hence,

V = 2πR³

Answer 2

Answer: 2π$r^{3}$

Step-by-step explanation:

π$r^{2}h$ (Formula for volume of cylinder)

h = 2r

SO, we can write it as π$r^{2}$x2r

2π$r^{3}$