complementary angles

1. 1.

   two angles whose sum is a right angle

   Broaderangle

Questions about complementary angles

What does complementary angles mean?

complementary angles means "two angles whose sum is a right angle".

Is complementary angles a common word?

complementary angles is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.