The ruler is the most common measuring device. In the United States, most rulers have the imperial measurements along one long edge while the other long edge shows the metric measurements. A standard ruler is 12-inches long and 30 centimeters in length.
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Answer:
The ruler is the most common measuring device. In the United States, most rulers have the imperial measurements along one long edge while the other long edge shows the metric measurements. A standard ruler is 12-inches long and 30 centimeters in length.
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