a quadrilateral
a shape with 5 equal sides is a pentagon
this shape is called a trapizoid see heres a picture!
That depends on what you mean by "diamond shape." In a general shape, no, the sides need not be exact. If the shape is distinctly called a "rhombus," then mathematically speaking, yes, all sides must be equal, per the definition of a rhombus.
Depends, what shape are you talking about? Is it a triangle with no equal sides?
It is an irregular shape or polygon that doesn't have all sides equal
A shape with 8 equal sides is called a regular octagon.
Names for shapes that have equal sides are called EQUILATERAL.
An irregular heptagon.
A triangle that has no equal sides is called scalene.
A regular polygon
If it has four equal sides, then two parallel sides implies two PAIRS of parallel sides. The shape is a rhombus.
a circle
pentagon
a shape with equal sides
a shape with 10 sides is called a decagon.
A rhombus by definition has 4 equal sides. So does a square.