The two horizontal lines are parallel, and there is a third line that intersects them as shown below.
If we know that the blue angle is MEASURE degrees, what is the measure of the orange angle?
Opposite angles are equal, so the pink angle measures MEASURE degrees.
The pink and orange angles are corresponding angles, so they are also equal.
The orange angle measures MEASURE degrees.
Note that the green angle also measures MEASURE degrees. This makes sense because it is opposite the orange angle and corresponds with the blue angle.