Exploring SSS Postulate

Click New Problem to change the side lengths of Triangle DEF Use the sliders to adjust the side lengths of triangle ABC so they match the sides of DEF. What do you notice about the angles in the two triangles now that the side lengths are the same? How can you determine if the two triangles are congruent? If the triangles are congruent, write a congruence statement. Try changing Triangle ABC so that its sides match a different side of triangle DEF. How do the angles shown relate to the angles from before?