Answer:
Vertical angles, equal angles
Step-by-step explanation:
when a transversal passes through two lines, then,
Angles formed in the same side and inside the two lines are same side interior angles.
Angles that are formed on opposite sides of the transversal and inside the two lines are alternate interior angles.
Angles formed on opposite sides of the transversal and outside the two lines are alternate exterior angles.
Angles with the same relative position at each intersection are corresponding angles,
While, when two lines intersect each other then the opposite angles formed called vertical angles,
supplementary angles : When the sum of two angles are 180°,
Right angles : angle that has the measurement of 90°,
Equal angles : angles with the same measurement.
Now, vertical angles are always equal angles,
Also, when two parallel lines are cut by the same transversal then the pair of alternate interior angles, alternate exterior angles, corresponding angles are always equal.
Hence, by above definitions it is clear that,
∠16 and ∠14 are vertical and equal angles.