A side of the triangle below has been extended to for an exterior angle of 161°. Find the value of x.
D. 19°
E. 46°
F. 134°
Let's assume the exterior angle formed is at point A.
The sum of the exterior angle and the opposite interior angle of a triangle is 180°.
Therefore, x + 161 = 180
x = 180 - 161
x = 19°
So, the value of x is 19°, which corresponds to option D. 19°.