Android app on Google Play

Rhombus

A rhombus is a quadrilateral, of which all sides are of equal length
Rhombus with diagonals and angle alpha


The opposite angles are equal.

The two diagonals are pependucular and intersect each other in both their midpoints.

Area

The area of a rhombus can be calculated in different ways, depending on the data you have.


If the diagonal lengths are given:

A=frac{1}{2}*d_1*d_2

where d1 and d2 are the diagonal lengths.

If the side length and an angle is given:

A=sin(alpha)*a^2

where α is the angle and a is the side length.

If the side length and the radius of the inscribed circle is given:

A=2*a*r

Where a is the side length and r is the radius of the inscribed circle.

Calculate the area of a rhombus

Diagonal length (d1): 
Diagonal length (d2): 
Side length (a): 
Angle in degrees (alpha): 
Radius of the inscribed circle (r): 

Circumference

The circumference of a rhombus is given by:

C=4*a

where a is the side length.