How many cm is in a metre

How many cm is in a metre?
How many metres in a yard?
how many yards in mile?

Could you please answer these questions with complete and true answers.
If you can tell me anymore you know , for example, how many cm in a inch?, please state them.
I will chose a best answer so make your answers correct also with plenty of detail!
Thanks,

100cm=1meter
0.9144 metres=1yard
1760 yards=1mile

please return the favour

ps
If you want to check Google it.

How will you know if my answer is correct? The point of asking a question is to gain information you didn't already know, so I could tell you anything and you'd have to take it as truth until you did your own research...

Type any conversion into Google and it will do it for you