13 cm 7 cm NOT TO SCALE The diagram shows a solid made up of a hemisphere and a cone. The base radius of the cone and the radius of the hemisphere are each 7 cm. The height of the cone is 13 cm. (a) (i) Calculate the total volume of the solid. [The volume of a hemisphere of radius r is given by V = ¹.] [The volume of a cone of radius r and height h is given by Varh.​