A short video on the proof of the circle theorem - the angle at the centre (center)
Download this video for handheld devices    See also: The angle at the centre ...

The video content presented here requires a more recent version of the Adobe Flash Player. If you are you using a browser with JavaScript disabled please enable it now. Otherwise, please update your version of the free Flash Player by downloading here.

All pages and content are Copyright © R F Barrow, 2001 - 2016. All rights reserved.