The unit of length derived from 10 millionth part of the arc distance between the equator and poles. It is 39.37 inches long

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Multiple Choice

The unit of length derived from 10 millionth part of the arc distance between the equator and poles. It is 39.37 inches long

Explanation:
The concept being tested is the historical origin of the meter. The meter was defined as one ten-millionth of the distance along the Earth’s meridian from the equator to the North Pole. That specific fraction created a practical unit of length, and its length happens to be about 39.37 inches. So the described unit is the meter. For comparison, a kilometer is 1,000 meters, an inch is 2.54 centimeters, and a foot is 12 inches; none of these are defined by that arc distance.

The concept being tested is the historical origin of the meter. The meter was defined as one ten-millionth of the distance along the Earth’s meridian from the equator to the North Pole. That specific fraction created a practical unit of length, and its length happens to be about 39.37 inches. So the described unit is the meter.

For comparison, a kilometer is 1,000 meters, an inch is 2.54 centimeters, and a foot is 12 inches; none of these are defined by that arc distance.

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