Questions: In the diagram below, BD→ is parallel to XY→. What is the value of x? A. 125 B. 75 C. 55 D. 115
Transcript text: 1.8.3 Quiz: Parallel Lines and Proofs
In the diagram below, $\overrightarrow{B D}$ is parallel to $\overrightarrow{X Y}$. What is the value of $x$ ?
A. 125
B. 75
C. 55
D. 115
Solution
Solution Steps
Step 1: Identify the given information
We are given that line \( \overline{BD} \) is parallel to line \( \overline{XY} \) and that the angle between the transversal and \( \overline{BD} \) is 125°.
Step 2: Recognize the relationship between angles
Since \( \overline{BD} \) is parallel to \( \overline{XY} \), the angles formed by the transversal are either corresponding angles or alternate interior angles. The angle given (125°) and the angle \( x \) are alternate interior angles.
Step 3: Apply the properties of parallel lines
Alternate interior angles are equal when the lines are parallel. Therefore, the measure of angle \( x \) is equal to the measure of the given angle, which is 125°.