# Areas of Parallelograms

## Work Time

# Areas of Parallelograms

The formula for the area of a parallelogram is:

area = base • height, or *A* = *bh*

Use the Parallelogram interactive to explore the area of a parallelogram. Move the vertices of the parallelogram and explore what happens to the area.

- What happens if you keep the height constant and change the base?
- What happens if you keep the base constant and change the height?
- What happens if you keep the height and base constant and change one of the angles?

INTERACTIVE: Parallelogram

## Hint:

To increase the height, move the top side farther away from the base.