Answer:
Step-by-step explanation:
We know a triangle adds up to 180 so:
75+36+ ? = 180
111+ ? =180
? = 69
To find out x, we know that a straight line adds up to 180 so again:
x +69 = 180
x = 111
let the untitled angle be y.
y+75°+36°=180°[by angle sum property]
y+111°=180°
y=180°-111°
y=69°
x+69°=180°[by linear pair]
x=180°-69
x=111°
