tag:blogger.com,1999:blog-7965844686849192796.post2199883025454382525..comments2009-11-05T00:02:51.121-08:00Comments on Coffee into Theorems: f(t): Help Me With Some AlgebraScotthttp://www.blogger.com/profile/12419732701519356524noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7965844686849192796.post-63924867589996346602009-03-21T21:45:00.000-07:002009-03-21T21:45:00.000-07:00Geogebra is nice because it is free, web-based, an...Geogebra is nice because it is free, web-based, and open source. Your students can access it from any computer that can run Java applets on webpages.<BR/><BR/>I have small compilation of applets I've created here: http://scottfarrar.googlepages.com/<BR/><BR/>So, yes I had to specify the radius in order to draw the arc. So it is cheating... (otherwise how would Geogebra know the curvature?) Its rather a strange thing to know the arclength and chord length but not the angle or radius. Could such a predicament exist without being esoteric? I wonder...Scotthttp://www.blogger.com/profile/12419732701519356524noreply@blogger.comtag:blogger.com,1999:blog-7965844686849192796.post-43606667090120404152009-03-21T19:09:00.000-07:002009-03-21T19:09:00.000-07:00well...yeah...you already knew where the center wa...well...yeah...you already knew where the center was, right, to construct your arc? so the radius is given, in your sketch. (unless I'm missing something, I don't know Geogebra, but I'm familiar with Sketchpad.)<BR/><BR/>In my problem, I would like to be able to say: the arc is 12 inches long, the chord is 36/pi inches long, what is the radius and angle?Katehttp://www.blogger.com/profile/14229054922453438248noreply@blogger.com