**Scalene triangles** are defined as a triangle where the interior angles are all different. Most triangles drawn at random would be scalene. The converse of this is also true - If all three angles are different, then the triangle is scalene, and all the sides are different lengths.

### Area

The area of a scalene triangle is:

See the heron's formula for more information.

### Perimeter

The perimeter of a scalene triangle is