Explore the relationship of the area between rectangles and triangles

Guiding Questions:
1) What do you notice about the other shapes the rectangle is broken down into?
2) Use the arrow tab to drag points A, B, and C to make the rectangle smaller and larger.
3) What do you notice about the area of ABC compared to the area of ABDC as the points are pulled?
4) What does this tell us about the relationship between the area of a triangle and the area of a rectangle?