complementary angles

English

Etymology

Complementary in the sense of completing, i.e. they form a complete right angle.

Noun

complementary angles

1. (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)

1. (geometry) A pair of angles that sum to a right angle.

   A = 30° and A′ = 60°, so A and A′ are complementary angles.

Translations

pair of angles

• Arabic: زَاوِيَتَانِ مُتَتَامَّتَانِ f du (zāwiyatāni mutatāmmatāni)
• Chinese:

  Mandarin: 餘角 / 余角 (zh) (yújiǎo)

• Estonian: täiendusnurgad
• Finnish: komplementtikulmat (fi)
• French: angle complémentaire (fr) m
• Greek: συμπληρωματικές γωνίες f pl (sympliromatikés goníes)
• Hungarian: pótszög (hu)
• Japanese: 余角 (yokaku)
• Maori: koki whakahāngai
• Polish: kąty dopełniające m pl
• Tagalog: sihang kapuno

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

Translations to be checked

• Icelandic: lagshorn n
• Romanian: unghi complementar

See also

• conjugate angles
• cosine
• explementary angles
• supplementary angles

Further reading

• Wikipedia article on complementary angles