Respuesta :

  • Answer:

≈ 15.70 cm

  • Step-by-step explanation:

L = πr·n°/180°

n = 180° - 66.4° = 113.6°

L = 3.14×7.9×113.6/180

= 2817.9616/180

= 15.6553

≈ 15.70 cm