Which are the lengths of the sides that would form a triangle? Responses 2 cm, 6 cm, 9 cm 2 cm, 6 cm, 9 cm 5 mm, 3 mm, 7 mm 5 mm, 3 mm, 7 mm 4 cm, 8 cm, 3 cm 4 cm, 8 cm, 3 cm 1 mm, 5 mm, 2 mm