A triangle WITHOUT ANY EQUAL sides is a Scalene.
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if two sides are of equal length, the a triangle is said to be isoceles.
An isosceles triangle has two equal sides
An Isosceles triangle has two sides that are the same and two angles that are the same.
Using the traditional definitions, a triangle that has two equal sides (and angles) is an isosceles triangle and one with three equal sides (and angles) is an equilateral triangle. However, some mathematicians define an isosceles triangle as any triangle having at least two equal sides, which is what you are describing.
A scalene triangle does not have any equal sides. Isosceles triangles have two equal sides