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Unit circle trigonometry: foundations

Problem

If x is equal to 7π radians, what is the value of x ?
(The number of degrees of arc in a circle is 360. The number of radians of arc in a circle is 2π.)
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi

How do I enter a student-produced response on the SAT?