Math Formulas > Geometry > Perimeter of a Parallelogram
Perimeter of a Parallelogram
h: height
For any parallelogram the following statements are true:
ab = dc
ad = bc
The perimeter of a parallelogram is therefore given by:
P = 2 (ad + ab)
If the length of ad or bc is not given, it can be calculated by using the following formula:
ad = bc = h/cos(∠ecb)
where ∠ecb is the angle measured in degree or radian
∠ecb can be calculated if the length of eb is given:
∠ecb = tan-1(eb/h)
Online Perimeter Calculator, click on the link will open a new window.
