346m
No. There's 100 cm to one meter, you do the math.
A professional sized pitch is 300m in perimeter two 100m sides by two 50m ends
Since the dimensions of a standard football field are 105 x 68m, and a football field is a rectangle, then 105 + 68 + 105 + 68 = 346, so the perimeter is 346m.
Mach 3 means flying three times the faster than sound. Speed of sound at an usual temperature is 346m/s. This means Mach 3 is about 1 km/s. That is 3600kmph. That is 2250 mph.2283.59 mph