Triangle where all sides are different lengths

What word best describes a triangle where all sides are different lengths?

1. Oblique

2. Equilateral

3. Scalene

4. Obtuse

Correct Option: Option C,

Scalene

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A scalene triangle is a triangle in which all three sides have different lengths. Also the angles of a scalene triangle have different measures. Some right triangles can be a scalene triangle when the other two angles or the legs are not congruent.