Respuesta :

Answer:

C

Step-by-step explanation:

x=60

60

60+30=90

60-30=30

60+90+30=180

Answer:

The Answer is : 60, 90, 30

Step-by-step explanation:

The sum of an angle in a triangle is 180'

        x + (x + 30) + (x - 30) = 180'

        x + x + 30 + x - 30 = 180'

collect like terms

        3x + 30 - 30 = 180'

        3x = 180'

         x = [tex]\frac{180'}{3}[/tex]

         x = 60

So therefore, where x = 60

      x = 60

      x + 30 = 60 + 30 = 90

      x - 30 = 60 - 30 = 30

The Answer is : 60, 90, 30

Q&A Education