In this activity you are going to construct a Golden Rectangle and to create a new Geogebra tool. Geogebra has "user defined tools": this means you can create your own tools for the toolbar by taking an existing construction and specifying input and output objects of your new tool.
Hint: If you are not sure about the construction process, you might want to have a look at [url]http://www.comathsnet.it/geogebra/golden_rectangle_new_tool.html[/url] and its view/ construction protocol.
