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Many people can remember these two but forget which way round they go. It is easy if you remember that 90 is before 180 numerically and complementary is before supplementary alphabetically.

2007-05-03 08:51:36 · answer #1 · answered by Anonymous · 2 0

Complementary angles add up to 90 degrees. Supplementary angles add up to 180 degrees.

2007-05-03 15:48:30 · answer #2 · answered by Joseph F 5 · 1 0

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