which would be the most appropriate unit to measure the length of a marathon race? miles
To determine the most appropriate unit to measure the length of a marathon race, we can look at the common practice and standard used worldwide. In the context of marathon races, the most common unit for measuring the length is kilometers (km), not miles.
The current standard for a marathon race is 42.195 kilometers (26.219 miles). This distance has been established by various international athletic organizations, such as the International Association of Athletics Federations (IAAF) and the International Olympic Committee (IOC).
So, if you want to accurately measure the length of a marathon race, it is recommended to use the unit of kilometers (km), rather than miles.