Question

What do you mean by length? Write SI units for measuring length​

Answer 1

Answer:

In the International System of Units (SI), the base unit of length is the metre (symbol, m) and is now defined in terms of the speed of light (about 300 million metres per second). The millimetre (mm), centimetre (cm) and the kilometre (km), derived from the metre, are also commonly used units.

SI unit: metre (m)..

Answer 2

Explanation:

Length is a measure of distance. In the International System of Quantities, length is a quantity with dimension distance. ... In the International System of Units (SI) system the base unit for length is the metre. Length is commonly understood to mean the most extended dimension of a fixed object.SI unit: metre (m)