• A rhombus is a quadrilateral (plane figure, closed shape, four sides) with four equal-length sides and opposite sides are parallel to each other.
  • The opposite interior angles of rhombuses are congruent.
  • The diagonals of a rhombus bisect each other at right angles.
How does a Rhombus look?
  • A plane figure (it has two dimensions)
  • A closed shape (it has an interior and exterior)
  • A quadrilateral (four-sided plane figure with straight sides)  
Is a Square a Rhombus?
  • All squares are rhombuses, but not all rhombuses are squares.
Is a Rhombus a Parallelogram?
  • All rhombuses are parallelograms, but not all parallelograms are rhombuses.
Properties of a Rhombus:
  • All sides of the rhombus are equal.
  • The opposite sides of a rhombus are parallel.
  • The opposite angles of a rhombus are equal.
  • The sum of two adjacent angles is equal to 180 degrees.
  • The diagonals bisect each other at right angles.
  • The two diagonals of a rhombus form four right-angled triangles which are congruent to each other.
  • The altitude of a rhombus is the perpendicular distance from the base to the opposite side.
Rhombus Applications:
  • The rhombus can be used as traffic signs or as the windows on the motorcycle or cars.
Know More About Rhombus
  • You will get another rhombus when you join the midpoints of half the diagonal.
  • You will get a rectangle when you join the midpoint of the sides.
  • One famous rhombus is the baseball field.
  • If each angle of a rhombus is 90 degrees, then it is a square.