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2. Minute and second of arc - Wikipedia

   en.wikipedia.org/wiki/Minute_and_second_of_arc

   A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol ′, is a unit of angular measurement equal to ⁠ 1 / 60 ⁠ of one degree. [1] Since one degree is ⁠ 1 / 360 ⁠ of a turn, or complete rotation, one arcminute is ⁠ 1 / 21 600 ⁠ of a turn.

3. Degree (angle) - Wikipedia

   en.wikipedia.org/wiki/Degree_(angle)

   These subdivisions were denoted by writing the Roman numeral for the number of sixtieths in superscript: 1 I for a "prime" (minute of arc), 1 II for a second, 1 III for a third, 1 IV for a fourth, etc. [13] Hence, the modern symbols for the minute and second of arc, and the word "second" also refer to this system.

4. Mathematical table - Wikipedia

   en.wikipedia.org/wiki/Mathematical_table

   To compute the sine function of 75 degrees, 9 minutes, 50 seconds using a table of trigonometric functions such as the Bernegger table from 1619 illustrated above, one might simply round up to 75 degrees, 10 minutes and then find the 10 minute entry on the 75 degree page, shown above-right, which is 0.9666746.

5. Intermediate Math League of Eastern Massachusetts - Wikipedia

   en.wikipedia.org/wiki/Intermediate_Math_League...

   Students are given 10 minutes to complete the round, along with a 1-minute warning. [1] The sixth category is a 15-minute team round that consists of six or nine questions (The amount of questions is unknown before the round starts). The entire team collaborates to solve each of the questions.

6. Prime (symbol) - Wikipedia

   en.wikipedia.org/wiki/Prime_(symbol)

   The triple prime ‴, as used in watchmaking, represents a ligne (1 ⁄ 12 of a "French" inch, or pouce, about 2.26 millimetres or 0.089 inches). [3] Primes are also used for angles. The prime symbol ′ is used for arcminutes (1 ⁄ 60 of a degree), and the double prime ″ for arcseconds (1 ⁄ 60 of an arcminute). [4]

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