Acute, right, and obtuse. Sometimes straight.
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Compare the number of sides and angles. Compare the types of angles. Compare the number of parallel lines.
Equilateral Triangle- 3 equal sides, 3 equal angles which are ALWAYS 60 degrees. Isosceles Triangle- Two equal sides, Two equal angles Scalene Triangle- No equal sides, and no equal angles
There are three types of triangles. Scalene triangles have no congruent sides or angles, equilateral triangles have 3 congruent sides and 3 60degree angles, and isosceles triangles have two congruent sides and two congruent angles.
There are 4 types which are:- 1 Corresponding equal angles 2 Alternate equal angles 3 Vertical opposite equal angles 4 Interior supplementary or allied angles
* Obtuse(less than 180, greater than 90) * Acute(less than 90, greater than 0) * Right((90) These are the 3 basice types of angles.