1.Could 18 in, 6 in, and 13 in, form a triangle? 2. Could 34 km, 27 km, and 58 Km, form a triangle?
3. Could 29 ft, 38 ft, and 9 ft, form a triangle?
4. Could 12 cm, 12 cm, and 25 cm, form a triangle?
5. Could 31 yd, 14 yd, and 19 yd, form a triangle?

1. yes

2. yes

3. no

4. no

5. yes

Step-by-step explanation:

The questions you're asking relate to the Triangle Inequality Theorem, which states that the two smallest sides (ex. 6 and 13) have to be of greater value than the largest side (ex. 18)

1. 6+13>18

2. 34+27>58

3. 29+9=38 (since the value of the two smallest sides are equal, it does not apply to the Triangle Inequality Theorem, and therefore won't be a triangle)

4. 12+12<25

5. 19+14>31

Happy to help <3