Question

What does an apostrophe symbol after a number mean? Like in the term ${75^0}20'39$?

Answer 1

Hint: First numbers may be simplified by adding an apostrophe in place of the omitted numbers.
An apostrophe and s are also used to form the plural of letters, signs, and terms corresponding to words.

Complete step-by-step solution:
When an apostrophe is found in the word’s angles, it means $'$ angular minutes, $''$ angular seconds.
Hence, we are able to say that ${75^0}20'39''$ as $75$ degree, $20$ minutes, and $39$ seconds.
The prime symbol $'$ is widely used to denote feet (ft), while the double prime can be represented as $''$ (about $2.26mm$ or $0.089$ inches)
Although the characters look similar to that of the apostrophe (single or double quotation mark), the prime symbol has a distinct set of applications. Due to the absence of the prime and double prime symbols on most keyboards, an apostrophe is often used in place of the prime and then double prime quotation in double prime.
Hence the apostrophe symbol after a number means Angular minutes and seconds, prime symbol and double primes, Length, feet, inches and angles too.

Note: The prime denotes $'$ and the double prime denotes $''$ and the triple prime denotes $'''$ and the quadruple prime denotes $''''$ are used to designate units and for another purpose.
Also, like apostrophes, there are some other symbols that we used for the angles as $^0$. The Corresponding angles are formed when the given two lines are crossed by another line. The angles created in matching corners at each intersection are the corresponding angle. When the two lines interest, at the point of their intersection an angle is formed, they form the base of geometry.