Question

Which set of numbers does not create a triangle?

80 cm, 25 cm, 1 m

5 m, 12 m, 8 m

110 ft, 12 yd, 150 ft

7 yd, 13 yd, 19 yd

Answer 1

no - the sum of any 2 sides must be greater than the other side

Answer 2

so what is the answer

Answer 3

test each one
for example the first one
first convert each side to cms:
80 , 25 and 100 cms

80 + 25 > 100
80 + 100 > 25
100 + 25 > 80

so these do form a triangle

Answer 4

and you can find the answers