Explanation:
Triangle 1: c = 7 cm
Triangle 2: c = 4 cm
Triangle 3: c = 3 cm
Triangle 4: c = 6 cm
The lengths of line c vary and can be any value greater than 0 and less than (a + b) = (2 + 5) = 7 cm. Therefore, the inequality that shows the possible lengths for line c is 0 < c < 7.