#647 Calculating volume and diameter of a cylindrical tank
#648 Measuring area and perimeter of a room
#680 Area, volume and perimeter of different shaped pools
#681 Ratio scale for model enlargement
#682 Converting degrees Celsius to Fahrenheit
#683 Converting feet and inches to metres with map scaling
#684 Converting km per hr to beat per second
#685 Measuring the millimetre line of a scaled-up diagram
#705 Calculating area and volume of cylindrical container