Congruent Triangles Exploration 5


Drag any point on triangle ABC to resize the triangle. Study what happens to triangle DEF when you resize triangle ABC. Also try to coincide (put one triangle on top of the other) and see if they match up.

What combination of parts of the triangle are highlighted and compared?

Looking at the diagram, is the side in between the two angles?

With this combination of parts, side-angle-angle (SAA) or angle-angle-side (AAS), can you conclude that the two triangles are always congruent to each other?