Michigan State University - Diagnostic Exam

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6.5

  •   The reference angle for ∘ 1000 is (?)

    a)  ∘ 280 b)  ∘ 720 c)  ∘ 100 d)  ∘ 80 e)  ∘ 1000

Solution:

Let ∘ θ=1000 . 1000 - 2(360) = 280 ⇒ that the terminal side of θ  is in quadrant IV. It follows that the reference angle is (360 - 280) degrees.

Diagnostic:

If you miss this question please review reference angles.

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July 15, 2008