Definition of complementary angle in English:

complementary angle

Line breaks: com|ple|men¦tary angle


  • Either of two angles whose sum is 90°.
    More example sentences
    • Angle A and angle B are complementary angles.
    • It took a full fifteen minutes for him to understand supplementary and complementary angles.
    • So what happened to him was that he was struck and flung in a north-easterly direction generally and he came out again at a complementary angle in a south-easterly direction until he was lying on the fog line.

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Pronunciation: ˈmeɪlstrəm
a powerful whirlpool in the sea