Respuesta :

Answer:   x = 30

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Explanation:

When adding three angles of any triangle, they always add up to 180

3x+2x+x = 180

6x = 180

x = 180/6

x = 30

This then means,

  • 3x = 3*30 = 90
  • 2x = 2*30 = 60

This triangle is a 30-60-90 triangle.