Where does pi r squared come from? Beautiful demonstration

You may also like...

1 Response

  1. Trever Reeh says:

    Tried to do this in the classroom, big backfire. I tried using string for the outside for them to figure out what pi was and for them to explore and figure out what the sine and cosine wave looked like…. not pretty.

    I would try it again with another class, but this applet would definitely come in handy!