Answer: 9cm or m (You havent mentioned any Step-by-step explanation: the total of the ratio of 3sides is (3+5+6) 14 That 14 = 42cm / m So we have to find 1 part by dividing 42 by 14 1 part = 3 cm/m The smallest ratio among 3:5:6 is 3 . so if 1 part is equal to 3cm/m, 3×3 9cm/m