To find the scale:Convert the measurements to the same units (usually the smaller units)drop the unitssimplify1 m = 100 cm 1 km = 1,000 m = 1,000 × 100 cm = 100,000 cmMap scales are given with the map figure, then the real-life figure→ map scale is 1 cm : 1 km (1cm on the map represents 1 km in the real world)= 1 cm : 100,000 cm= 1 : 100,000(This final scale means that 1 whatever measured on the map represents 100,000 of the same whatevers measured in the real world, ie 1mm on the map is 100,000 mm = 100 m in the real world, 1 cm on the map is 100,000 cm = 1 km in the real world, etc.)