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Math Help - Supplementary angles

  1. #1
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    Post Supplementary angles

    Which is supplementary to θ = 2π / 5?

    a) 3π / 5
    b) 3π / 10
    c) 7π / 5
    d) -8π / 5
    e) None of these

    Thanks for any help!
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  2. #2
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    Quote Originally Posted by live_laugh_luv27 View Post
    Which is supplementary to θ = 2π / 5?

    a) 3π / 5
    b) 3π / 10
    c) 7π / 5
    d) -8π / 5
    e) None of these

    Thanks for any help!
    two angles are supplementary if their sum is \pi
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  3. #3
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    Quote Originally Posted by skeeter View Post
    two angles are supplementary if their sum is \pi
    Ok, that's what I thought..
    so, it's a.
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