An interactive applet and associated web page that illustrate the properties the "Golden Rectangle" whose sides are in the "golden Ratio" of 1 : 1.618 : 1. The applet shows a golden rectangle whose vertices a re draggable. When dragged the rectangle changes to remain in the that shape. The web page discusses some properties of a golden rectangle and where it appears in art.

Applet can be enlarged to full screen size for use with a classroom projector. After use in the classroom, student can access it again from any web browser at home or in the library with no login required.

This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.