complementary anglenoun [ C usually plural ]
uk/kɒm.plɪˌmen.tər.i ˈæŋ.ɡəl/us/kɑːm.plɪˌmen.t̬ɚ.i ˈæŋ.ɡəl/one of two angles that together add up to 90°
Thesaurus: synonyms and related words
Geometry: describing angles, lines & orientations
- angle of incidence
- antinode
- asymptote
- asymptotic
- axial
- corresponding angle
- erect
- horizontal
- oblique
- parallel
- plumb
- prominent
- reflection
- right angle
- secant
- slant
- supplementary angle
- tangent
- tangential
- transversal
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