corresponding angles

plural noun Geometry.

two nonadjacent angles made by the crossing of two lines by a third line, one angle being interior, the other exterior, and both being on the same side of the third line.

Compare alternate angles.

Origin of corresponding angles

First recorded in 1790–1800

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018