Pittsburgh-based Triangle Tech is shutting down. The technical school with six locations around the state informed staff and students this week of the decision to close, citing declining enrollment among other factors in the decision to do so. Current students will continue to be taught through the end of their 16-month associate’s degree program. The closure impacts all Triangle Tech locations including those in Pittsburgh, Greensburg, DuBois, Sunbury, Bethlehem, and Chambersburg.