Area of a Paralellogram
Move point A and B to change the height and base and create a parallelogram of your choice. Drag point I to the extreme right of the segment. NOTE: When point B is moved to change the length of the base of the parallelogram, adjust point D to be parallel to point C, this will keep the triangle that will be cut off and translate it to the right in place.
1.) What is the relationship between the area of the original figure (parallelogram) and the area of the resulting rectangle? 2.) In terms of b and h, what is the area of the rectangle? 3.) Based on questions 1 and 2, what conjecture can you make about the two figures?