Respuesta :

Let's see what information we get from this picture:

First information

triangle is an isosceles triangle

   ⇒ meaning that the 'unlabeled angle' adjacent to 'angle of measure x'

       ⇒ are equal

Second information:

   ⇒sum of all the angle's measure of a triangle is 180 degrees

      ⇒ [tex]x + x +70 = 180[/tex]

Let's solve:

 [tex]x+ x + 70 = 180\\2x + 70=180\\2x=110\\x=55[/tex]

Answer: 55

Hope that helps!

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