Why doesn't Angle-Side-Side work?
- Michael Andrejkovics
In this applet you can vary the size of the Angle, and the next two consecutive sides in the Triangle. If you play with it a little you should notice that sometimes there are two possible Triangles, and other times there are only one. The fact that there are sometimes two possible Triangles means that we cannot use A.S.S to prove Triangle congruence.
When DOES Angle-Side-Side work? Why DOESN'T it work all the time?