5. Naming triangles according to the
lengths of their sides
• Equilateral triangle:
All three sides are equal in length. (Also all three
angles are equal in size.)
6. Naming triangles according to the
lengths of their sides
• Isosceles triangle:
Two sides are equal in length. (Also two angles
at the base are equal in size.)
7. Naming triangles according to the
lengths of their sides
• Scalene triangle:
No sides are equal in length. (Also no angles are
equal in size.)