alternate angle

Fetched 2026-11-05 (live).

Synonyms: alternate angles

Antonyms: alternate angles

Related words from Datamuse; suggestions, not definitions.

Noun

1. the internal angles made by two (parallel) lines with a third, on opposite sides of it. If the parallels AB, CD, are cut by the line EF, intersecting at points G and H, then the angles AGH, GHD, are called alternate angles (as also are the angles BGH and GHC).

Source: Wiktionary · CC BY-SA 3.0 (Wiktionary) · cached copy, not a rewrite.