Answer:
x = 169º
Explanation:
So we know that a straight line equals 180º. Now we have to come up with an equation. We're given 11º so the equation should look like:
x + 11 = 180 or 180 - 11 = x
I'll solve for both.
x + 11 = 180
-11 -11
x = 169
180 - 11 = x
180 - 11 = 169
x = 169