Applied Engineering Science 1 - tutorial based on first lecture (APD) Volume and area calculations A storage tank with paraboloid ends has the following front elevation with external dimensions: 0 85 cm 21 cm 21 cm 150 cm 1. Calculate the external volume of the tank 2. If the walls are of a uniform thickness of 8 mm, calculate the internal volume of the tank 3. If a 1 mm coat of paint is to be applied to the outside of the tank, what area will it cover