Respuesta :

Answer:

A. 12

Step-by-step explanation:

Using the Law of Sines,

  • sinA / a = sinB / b

Here,

  • A = 63°
  • a = x + 8
  • B = 63°
  • b = 3x

Solving :

  • sin63°/x + 8 = sin63°/3x
  • x + 8 = 3x
  • 2x = 8
  • x = 4

Finding MN :

  • MN = x + 8
  • MN = 4 + 8
  • MN = 12

Answer:

If you are on A P E X the correct answer is 12 like the previous helper has stated :)

Step-by-step explanation:

A P E X Learning

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