Respuesta :

Answer:

#1

  • x/9 = tan 60°
  • x = 9 tan 60°
  • x = 15.6 m

#2

  • cos θ = 15.1/16.5
  • cos θ = 0.915
  • θ = arccos (0.915)
  • θ = 23.8°

#3

  • 10/x = tan 42°
  • x = 10 / tan 42°
  • x = 11.1 m