Answer: x = 83°
Explanation:
First, a straight line is equal to 180°.
180° - 126° = 54°
Next, a triangle's internal angles add up to 180°.
54° + 43° + x = 180°
With this given equation, we can solve for x.
Given:
54° + 43° + x = 180°
Combine like terms:
97° + x = 180°
Subtract 97 degrees from both sides of the equation:
x = 83°