Question

Which set of numbers does not create a triangle?
115 cm, 65 cm, 1.5 m

5 m, 9 m, 1500 cm

12.5 ft, 3 yd, 19.75 ft

6 yd, 33 ft, 15 yd

Answer 1

take the shortest two, add them up... if the sum is bigger than the longest side, then it is a triangle....

Answer 2

but becareful.... some of those have different units....

Answer 3

I don't really get what your saying . I'm not that great in geometry .