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''supplementary angle'' ⚬｜Definition｜1st｜20260605165344-00-⌔
supplementary angle - Wiktionary, the free dictionary
English
Noun
supplementary angle (plural supplementary angles)
- (geometry) An angle that, when added to another referenced angle, produces an angle of 180 degrees.
- ✤ Angle A is 40°, and its supplementary angle, B, is 140°.
Printed 2026-06-28.
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