Enter either the length of the sides of the rhombus, either length of the two diagonals, enter the calculation accuracy and click on "Calculate". Calculator will calculate the perimeter of a rhombus.
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Rhombus - a parallelogram with equal sides. Rhombus, whose sides form a right angle is called a square.
Opposite corners of the rhombus are equal.
The diagonals of a rhombus intersect at right angles, the intersection point is the midpoint of each diagonal. Thus, the rhombus diagonally divided into four right triangles.
The diagonals of a rhombus bisects the angles from which they are made.
The sides of the rhombus is parallel pairs.
The perimeter of a rhombus is calculated according to formulas: 
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