English version

three-cornered in Shapes, patterns topic

From Longman Dictionary of Contemporary Englishthree-corneredˌthree-ˈcornered adjective [usually before noun]  1 CFhaving three corners2 three-cornered contest/fight
Examples from the Corpus
three-corneredThis is also true with other three-cornered credit transactions, besides car sales.Third, after a terrific three-cornered fight, were David Hoskins and David James.The magistrate put on a black cap, a three-cornered piece of silk.Whittam Smith might feel he could achieve profits faster in a three-cornered race.The slave trade involved a three-cornered system of exchange.