What does an apostrophe symbol after a number mean? Like in the term: 75° 20'39?

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11
Jun 9, 2016

It may have more than one meaning, but it is usually a unit.

Explanation:

An apostrophe sign can be used in:

• angles - then it means $'$ - angular minutes, $' '$ - angular seconds. Example: ${75}^{o} 20 ' 39 ' '$ which stands for: $75$ degrees, $20$ minutes and $39$ seconds.

• lengths - then it means: $'$ - feet, $' '$ - inches like: He is $5 ' 4 ' '$ tall. The sentence would mean : He is $5$ feet and $4$ inches tall. (about 165 cm)

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