Question

Define one metre,these s.i.unit of length.state it's one multiple and one submultiple

Answer 1

Answer:

The metre is defined as the length of the path travelled by light in a vacuum in 1299 792 458 of a second. The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately 40000 km.

Explanation:

multiple- kilometres (km)

multiple-kilometres(km)

sub multiple- millimetres (mm)