Question

Which of these sides form a triangle? And which one doesn't form a triangle?

Answer 1

Simple,

I learned this from my teacher...

the two smallest sides, when added together have to equal more than the largest side...

1.)4.2+5.6=9.8      9.8 vs. 7(Does create a triangle)

2.)10+24=34          34 vs. 26(Does create a triangle)

3.)43.5+54=97.5     97.5 vs. 72.5 (Does create a triangle)

4.)7.8+15.4=23.2   23.2 vs. 17 (Does create a triangle)