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anonymous

  • one year ago

1) Assume angle C is a right angle and given the conditions c=2 and angle B = 45 degrees, solve for the side lengths of the right triangle. When doing the math i got sqrt 2 for sides a and b, Would this be correct? 2) Find a positive angle less than one revolution around the unit circle that is co-terminal with the given angle: -40°. I have no idea what co-terminal means..i need a refresher. 3) Draw the angle given in degrees on the unit circle where 0° corresponds to the positive portion of the horizontal axis: -2012°. What i got was on Q2 which would be 32 degrees

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  1. welshfella
    • one year ago
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    |dw:1437767715586:dw|

  2. welshfella
    • one year ago
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    tan 45 = 1 = a/b

  3. welshfella
    • one year ago
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    c^2 = a^2 + b^2 4 = 2a^2 a^2 = 2 a and b = sqrt2

  4. welshfella
    • one year ago
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    2 i'll draw a diagram |dw:1437768025613:dw|

  5. welshfella
    • one year ago
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    320 degrees

  6. welshfella
    • one year ago
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    sorry gtg

  7. anonymous
    • one year ago
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    So when ever it says co terminal and 1 revolution it means you subtract 360?

  8. welshfella
    • one year ago
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    negative angles move counterclockwise

  9. anonymous
    • one year ago
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    Okay, thanks for your help!

  10. welshfella
    • one year ago
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    360 - the angle - they 'end' in same place - hence co-terminal

  11. welshfella
    • one year ago
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    yw

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