extang.gsp
Form 2 Mathematics
Exterior angle of a triangle
This is a prototype of JavaSketchpad, a World-Wide-Web component of The Geometer's Sketchpad. Copyright &
copy ; 1990-1998 by Key Curriculum Press, Inc. All rights reserved. Portions of this work
were funded by the National Science Foundation (awards DMI 9561674 & 9623018).
This page is best viewed by IE4 or Netscape Communicator (java-capable browsers).
Drag A, B, C and observe the changes. What can you say about the exterior angle CBD of the above triangle?
[Back to main page]
[Back to Javasketchpad page]