ok
longest side measure must be less than the sum of the other 2 sides
basically
longestside<otherside1+otherside2
a.
longest is 6
6<4+2
6<6
false, cannot
b.
longest is 5
5<4+2
5<6
true, can be a triangle
c. longest is 12
12<6+2
12<8
false, cannot
d. longest is 14
14<8+2
14<10
false, cannot
B is only possible
