We need to calculate the value of $x$ given the angles around a point on a straight line. The angles are $176^\circ$, $x$, $2x$, and $17^\circ$.
2025/6/22
1. Problem Description
We need to calculate the value of given the angles around a point on a straight line. The angles are , , , and .
2. Solution Steps
The angles on one side of a straight line add up to . Therefore, the angles , , and plus the angle should add up to .
Alternatively, because the angle subtended by the line is
The sum of the angles around a point is . Thus, we can write the equation:
Combine the terms with :
Combine the constant terms:
Subtract from both sides:
Divide both sides by 3:
or
The sum of the angles on one side of the straight line is , thus
is wrong. It should be
, no degree here. This means , and .