Question

How do you appreciate the introduction of Platinum-Iridium metre
scale in France for measuring length?​

Answer 1

Bruh ,what grade is this thing ?

Hope it helps

Have a great day ahead

:)

Mark me brainliest pls

Answer 2

Answer:

A new unit of length, the metre was introduced – defined as one ten-millionth of the shortest distance from the North Pole to the equator passing through Paris, assuming an Earth's flattening of 1/334. For practical purposes however, the standard metre was made available in the form of a platinum bar held in Paris.