Question

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

Answer 1

If you add any two sides it can't be equal to another side.

Answer 2

so its 1

Answer 3

or shorter.

Answer 4

\(\Large \color{purple}{\rightarrow a + b>c }\)

If you see the first one, you see that 4 + 8 is not greater than 12.
So, we know that 4,8,12 cannot be the sides.

Answer 5

Look at that you solve it on your own!!! Good job!

Answer 6

lol thanks