What part of rivers are waterfalls usually found?

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

Jessica finds out that the government introduced a new trade policy that will increase import tariffs. she calls for a meeting of all of the company'sdepartment heads to address this issue, since the new tariffs may increase the company's production costs. what is the purpose of this meeting? o a. operationsb. financec. strategic planningod. marketing

Which search pattern would be best suited for a crime scene where many investigators are available to search a large area? a. spiral b. grid c. line d. zone