A parallelogram is a four-sided figure with the opposite sides parallel to one another. A parallelogram containing a right angle is a rectangle; if its four sides are equal in length, the rectangle is a square. Finding the area of a rectangle or square is straightforward. For parallelograms with no right angle, such as a diamond-shaped quadrilateral, calculating area is a bit more involved.

## Square or Rectangle

### Step 1

Measure the length of one side of the figure.

### Step 2

Measure the length of an adjacent side.

### Step 3

Multiply the two measurements to obtain the area.

## Parallelogram With No Right Angle

### Step 1

Measure the length of one side of the parallelogram.

### Step 2

Measure the height of the parallelogram, which is the shortest distance from the side you measured to the opposite side. The height forms a right angle with the measured side.

### Step 3

Multiply the two measurements to obtain the area.