SSS Challenge

Can you create two triangles that are not congruent with... 3 congruent sides?
1) Adjust the slide bars to change the side lengths of your triangle 2) Arrange points A_1, C_1, and A_1' to form a triangle 3) Turn on "Triangle 2" - is it congruent to Triangle 1? 4) Rearrange Triangle 2 to see if you can make it not congruent to Triangle 1