What does an apostrophe symbol after a number mean? Like in the term: 75° 20'39?
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Daniel L.
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Jun 9, 2016
Answer:
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^o20'39''# 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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