Question

Which set of numbers could NOT represent the side lengths of a triangle.

Answer 1

What happened to the sets of numbers?

Answer 2

Which set of numbers could NOT represent the side lengths of a triangle.
1) 4, 8, 12
2) 18, 28, 40
3) 3, 4, 5
4) 11, 11, 15

Answer 3

Use the Trianagle Inequality Theorem: One side of a triangle is less than the sum of the other two.

I'll demonstrate for 1) 4, 8, 12

Is 4 < 8 + 12 NO so this triple of numbers could not be sides of a triangle.