Precision is the agreement among several trials in measurement therefor, a wooden ruler is more precise because you will be estimating the measured value over and over again
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A standard ruler's actual size is 12 inches long. Rulers may be plastic, metal or wooden. Often rulers have metric measurements on one side even though the metric system is not used in the United States, at least not for official purposes.
a flat wooden stick
They are equal
use your ruler to measure the sides
why are the division lines on a ruler diffrent lengths