Question

why do we need standard unit of lenght for measurement​

Answer 1

Answer:

A unit of measurement which has a fixed value which does not change from person to person or place to place, is called a standard unit of length. It is necessary to have standard units of measurements for the sake of uniformity in measurements

Explanation:

Answer 2

Answer:

hi so, we need standard unit of measurement because if we measure like ancient times with hands, legs and all also known as hand span cube etc:- We cannot get standard measures because different people have different arm length etc:- So this is why we need to use standard unit of length