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In which quadrant does an angle of 5 radians terminate? Show your work.

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2 answers
  1. I would say it is an angle whose coordinates (as a trigonometric angle measured along the unit circle, x^2+y^2=1), lie in the 3rd quadrant. Since one can see that pi < 3.5 < 3pi/2, where pi = 3.14 (approximately), the point which corresponds to this angle, 3.5 radians, on the unit circle must be in the 3rd quadrant.
    So
    3.5 radians = 3.5*180/π =200.53 Deg.
    It lies in the 3rd Quadrant.

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  2. the question was about 5 radians.
    3π/2 < 5 < 2π
    so 5 radians is in QIV

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    oobleck

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