Lengths of AB and BC are determined by their respective sliders. Theta adjusts Angle C. Drag point C to try to create 2 different triangles with the same SSA:

Questions to think about:

Were you able to make two different-looking triangles for some combinations of the slider values? Which combinations of slider values gave you 2 different triangles? Which gave you just 1? Which gave you none at all?? What does this applet tell you about SSA as a method of proving 2 triangles congruent?