How do you spell the names of different triangles?

Answer 1

Classifications by side length or comparison of angles and sides:

scalene - no sides or angles equal

isosceles - two sides and angles equal (congruent)

equilateral - all sides and angles equal (all 60° angles)

Classifications by included angles :

right triangle - contains a 90° angle (right angle)

oblique triangle - has no right angle

acute triangle - contains all angles less than 90°

obtuse triangle - contains one angle greater than 90°