Line a is parallel to line b. If themeasure of 27 is 114, what is themeasure of 24234615114 = 78b

Notice that
[tex]\measuredangle7+\measuredangle6=180^{\circ}[/tex]then,
[tex]\measuredangle6=180^{\circ}-114^{\circ}=66^{\circ}[/tex]Now, since the lines are parallel
[tex]\measuredangle6=\measuredangle4[/tex]because they are alternate interior angles.
Answer:
[tex]\measuredangle4=66^{\circ}[/tex]