In commerce, liquid oxygen is classified as an industrial gas and is widely used for industrial and medical purposes. Liquid oxygen is obtained from the oxygen found naturally in air by fractional distillation in a cryogenic air separation plant.
Lesson Summary. An acute angle is any angle smaller than 90 degrees. A right angle is an angle that measures 90 degrees. It doesn't matter how much smaller the angle is than 90 degrees; as long as it's smaller, it's acute. To unlock this lesson you must be a Study.com Member.
Master the Acute Triangle with these Seven Specific stages. The acute triangle is identified by its angles, in the same manor as the. right triangle and the Obtuse triangle. If the triangle has an angle that measures more than 0 degrees and less than 90 degree (ie an acute angle) then it is acute. The seven steps detailed bellow take you from basic identification all the way through to taking a detailed look at the theorems involving the acute triangle.