alternate angles
noun1
Geometry, Mathematics, Sciences the internal angles made by two (parallel) lines with a third, on opposite sides of it.
› the internal angles made by two (parallel)…
2
Geometry, Mathematics, Sciences 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).