| A | B |
| Acute Triangle | triangle with all acute angles |
| Equiangular Triangle | triangle with all angles congruent |
| Equilateral Triangle | triangle with all sides congruent |
| Isosceles Triangle | triangle with 2 sides congruent |
| Obtuse Triangle | triangle with 1 obtuse angle |
| Right Triangle | triangle with 1 right angle |
| Scalene Triangle | triangle with 3 different sides |
| free | free |