A No 9 is bigger than the other 2 added together. B 3+ 6 = 9. A triangle cannot be formed. C 4+5 = 9. A triangle cannot be formed. The shorter two will just make the length of the longest side. No triangle made. D Yes 4+6 > 9 A triangle will be formed. E Yes 5 + 5 = 10 which is greater than 9. A triangle will be formed.