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# What is a metric ruler used for?

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A metric ruler is used to measure the length, height and width of an object or the distance between two points, objects or places. Depending on the length of the metric ruler, it can be divided into millimeters, centimeters, decimeters or meters.

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A metric ruler, also called a rule or, especially in the printing industry, a line gauge, is a measuring instrument used in technical drawing, geometry, engineering, printing and construction to rule straight lines and calculate distances. As such, metric rulers often have distance markings along their edges. Woods, plastics and metals are among the materials used in making metric rulers.

## Related Questions

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A metric ruler is used to measure things in centimeters and millimeters with 1 centimeter equaling 10 millimeters, so a ruler will have 10 tiny millimeter lines between each centimeter to denote the millimeter. This can be seen by looking at the ruler and seeing the longer lines on the ruler, which are centimeter marks, and the shorter lines on the centimeter, which are millimeter marks.

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Metric scale rulers commonly use meters, centimeters and millimeters to measure distance, and each measurement is broken down using multiplications of 10. Ten millimeters equal a centimeter and 100 centimeters equal a meter, allowing for simple measurement of distance with no complex mathematical equations required.

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To use a ruler, place it alongside or on top of the object or line that is to be measured and count the number of marks from edge to edge of the object. For those who are working with a metric ruler, the longer lines are denoted by a numerical value and represent centimeters, with ten smaller lines placed in between each centimeter, denoting a millimeter. For those who are working with English rulers, each of the longer lines indicate an inch, with eight smaller lines separating each inch to represent the length of 1/8th of an inch.