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. 2019