Three different ways to calculate the area of a
rhombus are given below, with a formula for each.
Try this Drag the orange dots on each vertex
to reshape the rhombus. The area will be continuously calculated using the "base times height" method.
is actually just a special type of parallelogram.
Many of the area calculations can be applied to them also. Choose a formula based on the values you know to begin with.
1. The "base times height" method
First pick one side to be the base. Any one will do, they are all the same length.
Then determine the altitude - the perpendicular distance from the chosen base to the opposite side.
The area is the product of these two, or, as a formula:
where b is the length of the base a is the altitude (height).