What is the format of 45.123°?

The format of 45.123° is classified as Decimal Degrees. This representation indicates a geographical coordinate in which the degree is expressed as a decimal fraction. In this specific format, the whole number portion (45) signifies degrees, while the decimal portion (.123) represents a fraction of a degree.

Decimal Degrees are commonly used in various applications such as GPS devices and online mapping services due to their simplicity and ease of use. It allows for more straightforward calculations and data processing compared to formats that involve minutes and seconds.

In contrast, Degrees, Minutes, Seconds would represent the same value as 45° 7' 23.4" (where 7' represents minutes and 23.4" represents seconds). Degrees and Decimal Minutes would also require conversion of the decimal portion into minutes and may look like 45° 7.38', while Minutes and Seconds only deal with these units without reference to degrees. Each of these alternatives offers a different approach to expressing geographic coordinates, but 45.123° clearly fits into the Decimal Degrees classification.