1. Check the package for clues. For instance, you may see a description such as, “Brown and Yellow 68 Eyelet.” These usually offer a basic estimate of the lace to shoe
http://www.ehow.com/how_5890138_determineshoelace...

1. Measure the diameter of the plastic piece that the tape is wrapped around. Let the lowercase letter "d" represent this diameter in the calculations you will need to do
http://www.ehow.com/how_7451201_calculatelengtht...

The Queen Mary 2 is 1132 feet or 345 meters long. The ship weighs 151,400 tons and is 236 feet tall from keel to funnel. Cunard explains the ship's height limitation by noting that
http://www.ehow.com/facts_6817303_lengthqueenmar...

Ladders make working at great heights possible. A stepladder must be tall enough to bring a worker's hands to the height of the work. Extension ladders also have to be long enough
http://www.ehow.com/how_5670521_determineladderl...
