0.011 metres
11mm x 11mm = 121 mm2
As long as it has an 11mm ring mount then Yes. And I think it does, or you can order 11mm scope rings for the scope.
11mm=1.1cm
Yes, 11mm is smaller.
11mm
1.1
no
1.1cm
Yes.
42mm
What do you mean? Do you mean "how long is 53 meters in yards?", or "how long is 53 meters in feet", or what?
It is 2.2 meters long.