This document discusses different types of triangles based on side lengths. It defines equilateral triangles as having three equal sides, isosceles triangles as having two equal sides, and scalene triangles as having no equal sides. It then provides examples of side lengths that do and do not form valid triangles.

1. Equilateral Triangle

3. Isosceles Triangle

5. Scalene Triangle

6. 8in 9in 4in

7. 7 in, 6 in, 9 in

8. Side Lengths that will make a triangle

9. Side Lengths that will NOT make a triangle

10. 7 in, 6 in, 13 in