The total distance around the outside of a
Drag any orange dot to resize the rhombus. The perimeter is calculated as you drag.
How to find the perimeter of a rhombus
Like any polygon, the perimeter is the total distance around the outside,
which can be found by adding together the length of each side.
In the case of a rhombus, all four sides are the same length by definition,
so the perimeter is four times the length of a side. Or as a formula: