1.A water tank is the shape of a rectangular prism having length 2m, breadth 75cm and height 500mm. Determine the capacity of the tank in (a) m 3 (b) cm 3 (c) liters. 2.How much concrete is required for the construction of the path shown in Figure 27.8, if the path is 12 cm thick?
3. A cooling tower is in the form of a cylinder surmounted by a frustum of a cone, as shown in Figure 27.26. Determine the volume of air space in the tower if 40% of the space is used for pipes and other structures.