1. To calculate the volume of a cone, the first thing you should determine is the radius. Radius is one of the parameters you will need to calculate the volume of a cone. At times, the value for the radius might not be given, meaning you will need to calculate it using the diagram provided. However, if the diameter is known, just divide the value by 2 to get your radius.
2. Calculate the area of the base circle using the radius. The area of a circle is usually calculated with the formula: πr², where pi (π) is 3.14.
3. The height of a cone is another parameter you will need to calculate the volume of a cone. If the value for the height is not given, use your ruler to measure the height of the cone.
4. Then, multiply the height of the cone by the area of the base circle. Your answer should always be in cubic units.