- Clockwise from top left, the 3 lines are labeled s, q, and r.
- Line s intersects both line q and line r.
- At the intersection of line s and line q, 1 angle is labeled clockwise from top left as follows:
- At the intersection of line s and line r, 1 angle is labeled clockwise from top left as follows:
- A note indicates the figure is not drawn to scale.
In the figure, line is parallel to line , and both lines are intersected by line . If , what is the value of ?