Quizlet Ch. 11-Geometry

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  1. arc length: =arc measure over 360 times 2piR
  2. area of equilateral triangle: 1/4(ssq'd)(rad3)
  3. area of regular polygon: 1/2ap
  4. area of sector: =arc measure over 360 times piRsq'd
  5. each int. angle of a polygon: (n-2)180 over n
  6. probability: successful outcomes over total outcomes
  7. sum of central angles of polygon: 360 degress
  8. sum of ext. angles of polygon: 360 degrees
  9. sum of int. angles of polygon: (n-2)180