Change the size and shape of the parallelogram by dragging points A and B. Then, drag the right half of the parallelogram to form a rectangle with the left half.
- What is the area of the rectangle that you get?
- Click the Show Dimensions. What measurements of the parallelogram do you need in order to find its area?
Click the Start Over button, and repeat the investigation for parallelograms of other sizes.
- Are your conjectures true, regardless of the size of the parallelogram?
- Do all the parallelograms have the same area?