corresponding angle
noun [ C usually plural ] mathematics specialized uk/kɒr.ɪˌspɒn.dɪŋ ˈæŋ.ɡəl/ us/kɔːr.əˌspɑːn.dɪŋ ˈæŋ.ɡəl/
同位角
one of two equal angles on the same side of a line that crosses two parallel lines, and on the same side of each parallel line
Compare: alternate angle