A triangle with no congruent sides is known as a scalene triangle. In a scalene triangle, all three sides have different lengths and, consequently, all three angles are also different.
This type of triangle contrasts with isosceles triangles, which have at least two sides that are equal, and equilateral triangles, where all three sides and angles are equal.
The distinguishing feature of a scalene triangle is that no two sides are the same, making each angle unique. For example, if one side measures 5 cm, another side might measure 6 cm, and the third side could measure 7 cm. This variety in side lengths gives scalene triangles their distinct shape.