meters
You can measure the length of your arm in centimeters or millimeters. To convert this measurement to meters, you would divide by 1000 for millimeters or 100 for centimeters. The other units like decimeters, kilometers, and decameters are not typically used for measuring the length of a human arm.
With recorded lengths of just over 100 feet, you could measure a Blue Whale in either meters or yards and feet.
Well, honey, you'd want to use good ol' centimeters to measure the length of your arm. It's precise enough to give you an accurate measurement without getting all tangled up in those pesky decimals. So grab a ruler and start measuring, darling!
A ruler
i would use inches
It's a measure of width, 200cm, 2000mm, and about the length of your arm times two to give a very rough guide. Multiply it by the measure of height (and/or breadth) to get the volume.
You would use a measuring tape, with measurements in centimetres.
The mechanical advantage of a lever is calculated by dividing the length of the input arm by the length of the output arm. In this case, the mechanical advantage would be 3/2, which simplifies to 1.5. This means that for every 1 unit of effort applied to the input arm, the lever can lift 1.5 units on the output arm.
Arm span is a measure of the arm
The area of Norris Arm is 41.49 square kilometers.
The area of Salmon Arm is 155.28 square kilometers.
usually a arm would be compared to whatever they were trying to measure.