The image only shows two congruent angles/sides. In order for one of the given postulates to work, 3 congruent parts of the triangles must be applicable.
Let the number of cards in each group be 2x and 3x. So, 2x + 3x = 120 5x = 120 x = 120 / 5 x = 24 Number of cards in each group is 2x = 2 × 24 = 48 3x = 3 × 24 = 72
