Adrian is working in a kindergarten class and he asks his students to copy a triangle he has drawn on the board. He then picks a random sample of the student assignments and looks at the triangles they have drawn. He thinks he can prove triangle POV is congruent to triangle TSC using the AAS postulate. He knows that angle P is congruent to angle T and angle O is congruent to angle S. What additional informs does he need to complete his proof?
