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18 November, 19:40

How do I know if an angle is supplementary

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  1. 18 November, 22:24
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    All angles add up to 180 degrees
  2. 18 November, 23:30
    0
    Well. Every angle that add up to 180° is a supplementary angle.

    An angle that adds up to 90° is a complementary angle.
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