Respuesta :

devishri1977

Answer:

Step-by-step explanation:

x + 85 +28 = 180        {Sum of angles of a triangle}

x + 113     = 180

            x = 180 - 113

x = 67

x + y = 180   {Linear pair}

67 + y = 180

        y = 180 - 67

        y = 113

15 + y + z = 180

15 +113 + z = 180

      128 +z = 180

              z = 180 - 128

z = 52