Three cones have the same volume as one cylinder of the same diameter and height.
Remember the volume of a cylinder is .
The volume of the cone is one third of the volume of the cylinder.
The formula for the volume of a cone is:
A cone is made from a circle and a sector of a circle. The sector creates the curved surface of the cone.
The curved surface area of a cone can be calculated using the formula:
is the slanted height.
The total surface area of the circular base and the curved surface is:
Calculate the volume and total surface area of the cone (to 1 decimal place).