exterior angle

Meanings

nounexterior angle (plural exterior angles)

geometryAn angle formed between one side of a polygon and an extension of an adjacent side.

nounthe supplement of an interior angle of a polygon

Similar

external angle

Broader

Synonym sets from Open English WordNet, CC BY 4.0.

Czech vnější úhel

vnější úhelan angle formed between one side of a polygon and an extension of an adjacent side

Finnish ulkokulma

ulkokulmaan angle formed between one side of a polygon and an extension of an adjacent side

German Außenwinkel

Außenwinkelan angle formed between one side of a polygon and an extension of an adjacent side

Hungarian külső szög

külső szögan angle formed between one side of a polygon and an extension of an adjacent side

Māori koki o waho, koki waho

koki o wahoan angle formed between one side of a polygon and an extension of an adjacent side
koki wahoan angle formed between one side of a polygon and an extension of an adjacent side

Romanian unghi exterior, unghi extern

unghi exterioran angle formed between one side of a polygon and an extension of an adjacent side
unghi externan angle formed between one side of a polygon and an extension of an adjacent side

Slovak vonkajší uhol

vonkajší uholan angle formed between one side of a polygon and an extension of an adjacent side

Turkish dış açı

dış açıan angle formed between one side of a polygon and an extension of an adjacent side

Cite this entry

APA

exterior angle. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/exterior%20angle

MLA

“exterior angle.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/exterior%20angle. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “exterior angle,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/exterior%20angle.