Scalene has no equal sides or angles
a scalene triangle has no equal sides. an isosceles triangle has two equal sides
Isoseles triangle has two equal sides.
It is usually a regular polygon that has equal sides.
There is no specific name for a quadrangle with two equal sides.
The name for a triangle with two sides of equal length is an isosceles triangle.
A Scalene triangle has no sides of equal length.
Square. By definition, its sides must all be equal.
If it has four equal sides, it is a parallelogram. If the angles are also equal, it would be a square.
A regular pentagon has have equal sides. However, in the same way that a square has four equal sides but you can have a four sided figure with equal sides which is not a square, you can have pentagons that are not regular but do have equal sides. Unlike the quadrilateral, which is called a rhombus, there is no special name for a pentagon that has equal sides but not equal angles.
Triangles with three equal sides are called equilateral triangles.
The scalene triangle has no equal sides, and, therefore, no equal angles. (A triangle with no equal sides cannot have any equal angles and vice versa.)