Analyzing The Formula of A Parallelogram & Trapezoid

Prepare a Presentation

Work Time

Prepare a Presentation

  • Select one of your conclusions about what happens to the area of a parallelogram or a trapezoid when you change one or more variables.
  • Be prepared to demonstrate your conclusion using the Parallelogram or Trapezoid interactive, and to support your thinking mathematically.

Challenge Problem

Suppose you start with a parallelogram and then slide a pair of opposite sides in opposite directions along parallel lines.

  • Predict how the area will change. Use the Parallelogram interactive to test your prediction.
  • Support your prediction with data from the Parallelogram interactive.

INTERACTIVE: Parallelogram