2\) Total surface area \(= 28.3 + 28.3 + 188 = 244.6~\text{cm}^2\) (1d.p.). If a cone is filled with water it is possible to pour 3 full cones into a cylinder of the same diameter and height.

Three cones can fit inside a cylinder of the same diameter and height. Remember the volume of a cylinder is \(\pi r^2 h\). The volume of the cone is one third of the volume of the cylinder.