Answer:
w = 39°
Step-by-step explanation:
108° and y° are suplementary angles
111° 69°and x° are suplemantary angles
then:
108 + y = 180
y = 180 - 108
y = 72°
111 + x = 180
x = 180 - 111
x = 69°
Internal angles of a triangle sum 180°
then:
x + y + w = 180
69 + 72 + w = 180
141 + w = 180
w = 180 - 141
w = 39°
