A rhombus is a type of polygon that is a quadrilateral with all four sides of equal length. Opposite angles are equal, and the diagonals bisect each other at right angles, dividing the rhombus into four right-angled triangles. A rhombus can also be described as a parallelogram with equal-length sides. It is often referred to as a diamond shape due to its appearance.
All four sides of a rhombus are congruent. A trapezoid can have at most three congruent sides.
If you mean a rhombus then some of its properties are:- It's a 4 equal sided quadrilateral shape It has 2 opposite equal acute angles and 2 opposite equal obtuse angles Its 4 interior angles add up to 360 degrees Its 2 diagonals intersect each other at right angles It will tessellate