1. The problem statement, all variables and given/known data Two teams of explorers leave a common point. The first team travels 5 km north across a plain, then follows a river 15 degrees west of north for 7 km before making camp for the night. THe second climbs a ridge, traveling basically due northeast for 6 km along a trail that climbs upward to an altitude of 2.5 km. This team then follows the ridge northward at approximately 4 km before making camp for the night. Can the two teams communicate that night if their radios have a range of 5 km?