Is there any way to quickly calculate the length (in meters) of a bundle of welded nets that are packaged intact and have no dynamic seals, without opening the bundle of welded nets for measurement? The method of calculating the length is as follows:

A: First count the number of turns of the horizontal plane (the horizontal plane means: the upper and lower sides of the welded mesh, any one of them)

B: The length from the inner circle of the welded mesh to any side of the edge (unit is meter)

B multiplied by 3.14, multiplied by A equals the length of the welded mesh (in meters). The error is within 0.2 meters.

For example: the length from the inner circle of the welded mesh to any side is 0.295 meters

The number of turns counted out of the horizontal plane is 5

0.295 multiplied by 3.14, multiplied by 5

=0.9263 times 5

=4.6315 meters

The actual length of the welded mesh is 4.5 meters.