Dynamic parallelogram
- Author:
- Susan Addington
- Topic:
- Parallelogram, Rectangle
A parallelogram is a quadrilateral with two pairs of parallel sides. (Note that this includes rectangles, among other types of figures.)
Move B to and C to change the side lengths and directions.
To gradually change a point, select the point and hold down an arrow key.
Try moving B onto the circle. What kind of polygon do you get?
Try making a rectangle.
Try making a square.
Part of the textbook Measuring the World: Mathematics for Elementary and Middle School Teachers by Susan Addington and David Dennis. Copyright 2009.