They are meters to measure
Metres (in a built-up area), kilometres if across open spaces.
The easiest way is to simply measure across the pool as close to the center line as you can. Also, measure from several different spots to get the closest average. If you need the measurement for around the outside of the pool the you would want to measure the diameter (the distance from one side to the other) as close to the center as you can and multiply that distance (in inches) time 3.1415. For example, if the pool measure 12 feet across (144 inches) then the distance around the pool would be 452.3 inches. The pool liner supplier will most likely just need the diameter and the height of the pool.
metres
a millimetre
KILOMETER. it is a standard measurement. most measurements like area, perimeter, depth of ocean, speed of light, speed of sound all such things are measured in terms of kilometer. so it is the best way to measure distance as well
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The most commonly used unit of measure to measure the distance across Lake Erie would be kilometers or miles.
miles or kilometers
kilometers
Miles is best.
Because the distance across the Milky Way would be 588,000,000,000,000,000 miles.
You would measure the distance of the door with meters because liters measure volume not length.
It depends on the section of land and the unit of measure, a Section is 640 Acres, but an acre measures area, not distance. However, if the section is perfectly square, the distance across would be exactly 5,280 feet, or one mile.
length
Distance
Distance
Metres (in a built-up area), kilometres if across open spaces.