Respuesta :
The unknown angle is 32°
because a triangle = 180°
113+15= 148
180-148=32
because a triangle = 180°
113+15= 148
180-148=32
Answer:
x = 52
Step-by-step explanation:
The three angles of a triangle add to 180 degrees
x+ 113+15 = 180
Combine like terms
x+128 = 180
Subtract 128 from each side
x+128-128 = 180-128
x = 52