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Rhombus

Rhombus

A quadrilateral with four congruent sides and congruent opposite angles.

Properties

  • Rhombuses belong to the class of parallelograms; they are parallelograms with four congruent sides.
  • The two diagonals of a rhombus are perpendicular.
  • The opposite sides of a rhombus are parallel.
  • A rhombus has two axes of symmetry.

Based on its properties, a rhombus belongs to the family of convex quadrilaterals, trapezoids and parallelograms.

Formulas

The perimeter P of a rhombus with side length c is given by : P=4c.

The area A of a rhombus with a short diagonal d and a long diagonal D is given by : A=fracDtimesd2

 

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