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7 December, 14:38

Select all that are measures of angles coterminal with a - 60° angle.

-1020°

-780°

-420°

60°

120°

300°

420°

660°

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Answers (1)
  1. 7 December, 14:51
    0
    -60

    -60 + 360 = 360 - 60 = 300

    -60 + 360 + 360 = - 60 + 720 = 720 - 60 = 660

    Also for the negative.

    -60 - 360 = - 420

    -60 - 360 - 360 = - 780

    -780°, - 420°, 300°, 660°
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