Which set of numbers could represent the lengths of the sides of a triangle?
A {6,8,9}
B {1,2,3}
C {2,2,5)
D {2,6,9)
+128460 We have to follow the triangle inequality that says that the sum of the lengths of any two sides of a triangle is greater than the remaining side
B is out because 1 + 2 isn't greater than 3
C is out because 2 + 2 < 5
D is out because 2 + 6 < 9
A is correct
6 + 8 > 9
6 + 9 > 8
8 + 9 > 6
