ayleen1373
ayleen1373 ayleen1373
  • 16-05-2020
  • Mathematics
contestada

PLZZZ HELPPPPP
Which set of sides will NOT make a triangle?
11 cm, 13 cm, 3 cm
2cm, 3cm, 4cm
12 cm, 7 cm, 5 cm
19 cm, 14 cm, 7 cm

Respuesta :

hoanganh384628 hoanganh384628
  • 16-05-2020

Step-by-step explanation:

let 3 sides be a b c

a-b<c<a+b (always)

we have 7+5 =12 (contradict the above property)

-> 12,7,5 will not make a triangle

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