Answer:
x = 7°
Step-by-step explanation:
From the diagram, it is a refraction angle. When two lines are intersected each other, a refraction angles is created. Each line is a straight angle or 180°. In the above diagram,
6x - 7 + 20x + 5 = 180°
or, 26x - 2 = 180°
or, 26x - 2 + 2 = 180° + 2° [Adding 2° in both sides]
or, 26x = 182°
or x = 182° ÷ 26
Therefore, x = 7°
If we use x = 7°, we can find that each line is equal to 180°.
