Think about when it is more helpful to think about a length in inches rather than feet.
See solution.
Practice makes perfect
When choosing which unit is the most appropriate to use in a specific problem, it is helpful to think about how different units fit together. For example, an inch is a smaller unit while a foot is a larger unit. We can assume it makes more sense to describe a short length with inches and a longer length in feet.
In the previous exercise, the height of an ostrich is given as 108 inches. It can be difficult to imagine this height since an inch is so small and there are so many of them. Instead, we could express 108 inches in feet.
108 inches * 1 foot/12 inches = 108 feet/12 inches = 9 feet
Because the height of an ostrich is so large, it's more appropriate to express it in feet.
