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complementary angles. In DICTIOUS you will not only get to know all the dictionary meanings for the word
complementary angles, but we will also tell you about its etymology, its characteristics and you will know how to say
complementary angles in singular and plural. Everything you need to know about the word
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English
Etymology
Complementary in the sense of completing, i.e. they form a complete right angle.
Noun
complementary angles
- (geometry) plural of complementary angle
Let angle A = 30° and angle B = 10°, so that their complementary angles are A′ = 60° and B′ = 80°, respectively.
Noun
complementary angles pl (plural only)
- (geometry) A pair of angles that sum to a right angle.
A = 30° and A′ = 60°, so A and A′ are complementary angles.
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