Jonathan leans three playing cards against each other to form a triangle. He uses three more playing cards from the same deck to form a second triangle. Which statement is true? A. The two triangles cannot be congruent because sides cannot be used to prove congruency.

B. The two triangles must be congruent because the corresponding sides in both triangles are congruent.

C. In order to determine if the two triangles are congruent, Jonathan must measure all three interior angles.

D. In order to determine if the two triangles are congruent, Jonathan must measure one interior angle.