Area of Trapezoids

This worksheet provides a series of hints for the development of a formula for the area of trapezoids. You may want to
  • Use the blue slider and see what happens.
  • If you need additional hints move the blue slider to the rightmost position and continue with the black slider that appears.
  • Drag the blue points and the dashed line to create different trapezoids.
  • Click on the button in the upper right corner to reset the construction.