Respuesta :

Answer:

19 cm

Step-by-step explanation:

Triangle Inequality Theorem:

The sum of two side lengths of a triangle is always greater than the third side.

17+7> 19                         17+7   IS NOT BIGGER THAN 28

17+19>7

7+19>17

Answer:

19 cm me thinks

Explanation:

it has to be equivalent to the other side