Respuesta :

Answer: x = 25%

Step-by-step explanation: 45% + 30% = 75%

75% + 25% = 100%

devishri1977

Answer:

45°

Step-by-step explanation:

Sum of the angle measures of the triangle = 180°

30% of 180 = 0.3 * 180 = 54°

45% of 180 = 0.45 * 180 = 81°

Sum of all angles of triangle = 180°

54 + 81 + x = 180

       135 + x = 180

               x = 180 - 35

               x = 45°