Question

Which set of numbers below DO NOT make a triangle?

0 7,7,7
O 6,3,3
0 3,4,5
O 5, 11,7

Answer 1

3,4,5

Explanation:

All you have to do is use the Triangle Inequality Theorem, which states that the sum of two side lengths of a triangle is always greater than the third side. If this is true for all three combinations of added side lengths, then you will have a triangle therefore 3,4,5 is not triangle.