To calculate the volume of a cylinder, you can use the formula:
V = πr²h
Where:
- V is the volume of the cylinder,
- r is the radius of the base,
- h is the height of the cylinder, and
- π (Pi) is approximately 3.14159.
In this case, you’re given that the height h is twice the radius r. Therefore, you can express h as:
h = 2r
Now, plug this relationship into the volume formula:
V = πr²(2r)
This simplifies to:
V = 2πr³
So, the volume of the cylinder can be expressed solely in terms of its radius. To summarize, if the height of the cylinder is twice its radius, the volume will be:
V = 2πr³
This formula allows you to find the volume easily as long as you know the radius of the cylinder’s base.