Move the vertices to determine the shape of your triangle and observe what happens.

- What do you observe when you move the three vertices?
- Is there a relationship between the movement of the three vertices and the area of the triangle?
- Move point R. What do you observe?
- Explain why your observation in 3 is such.

Download GGB file here.

how to host geogebra files? so that it appears in any blog?

ReplyDeletecan Google blog host the files? or you got a server space some where else?

thanks!

hi. NO hosting needed. You just have to export the file to dynamic HTML, and then copy the HTML code to your blog. See the tutorials below for more info.

ReplyDelete1. ) Exporting GeoGebra to Dynamic HTML

http://math4allages.wordpress.com/2010/09/17/geogebra-tutorial-exporting-to-html/

2.) Embedding a GeoGebra applet in Blogger.

http://mathandmultimedia.com/2010/10/23/geogebra-advanced-tutorial-2/

3.) More than 50 GeoGebra Tutorials

http://mathandmultimedia.com/geogebra/

By the way, if you are using Wordpress, it does not allow GeoGebra embedding.