# Scalene triangle

A scalene triangle is a triangle in which all three sides are different in lengths, and no interior angles are equal.

## Triangles categorized by their sides

Triangles are often categorized by either their sides or angles. A scalene triangle is one of three triangles classified by their sides.

Type | Sides | Figure |
---|---|---|

Scalene | no sides are equal in length | |

Isosceles | 2 sides are equal in length | |

Equilateral | all sides are equal in length |

Triangles are also often categorized as obtuse, acute, or right triangles based on their angles. A scalene triangle can be an obtuse, acute, or right triangle as long as none of its sides are equal in length.