An example of a scalene triangle.

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.


The area of a scalene triangle is:

See the heron's formula for more information.


The perimeter of a scalene triangle is

Trigonometric functions of half angles in a triangle

Trigonometric functions of whole angles in a triangle



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