triangulate

kolmiomainen, kolmikulmainen

kolmioida to locate by means of triangulation
1966, Bob Shaw, Light of Other Days

"I'll give you a check now," I said abruptly, and saw Selina's green eyes triangulate angrily on my face.

It is one thing to triangulate between the United States and the Arab world for short-term advantage; quite another to find oneself alienated from the heretofore supportive Americans without finding commensurate gratitude from the Middle East.