How to classify a triangle based on the angles of the triangle ex 2

The video tutorial explains how to classify triangles based on their angles. It covers different types of triangles, including acute, obtuse, right, and equal angular triangles. An equal angular triangle has all angles equal, while a right triangle includes a right angle. An obtuse triangle has one angle greater than 90 degrees, and an acute triangle has all angles less than 90 degrees. The tutorial concludes by identifying the given triangle as acute.

How can you identify an obtuse triangle?

What are the characteristics of an acute triangle?