Answer:
51.4°
Explanation:
The number of sides of the given polygon = 7
To find the sum of angles in this polygon, we use the expression below;
(N - 2) x 180;
N is the number of sides
So,
Sum of angles here = (7-2) x 180
= 5 x 180
= 900°
Each angle will be [tex]\frac{900}{7}[/tex] = 128.6°
Since angle x is on a straight line with one of the interior angles;
Angle on a straight line = 180°
128.6 + x = 180
x = 180 - 128.6 = 51.4°
