What is the difference between a right, acute, and obtuse triangle?

a right angle is 90 degrees with a corner thats an L. An acute angle is less than 90 degrees such as 45,60,65, 74, etc. an obutuse triangle had angles that are three diffrent ones one angle should be more than 90 degrees (ex. 130, 25,25)

A right triangle has one angle that's 90° and a corner that looks like an L. Obtuse triangles have one angle that's greater than 90°. In acute triangles, all the angles are less than 90°.