Question

Why do we use standard unit of length for measurements?

Answer 1

1. In ancient times, people used the length of a foot, the width of a finger, and the distance of a step as units of measurement.
2. This caused confusion and a need to develop a uniform system of measurement arose. Hence, a common unit of length is decided and all the measurements are done according to that unit of length.
3. Now SI unit is used to measure the length and its value is the same everywhere.