Answer/Explanation:
The figure shown above can be used to represent the theorem which says: "if two lines are parallel, then the alternate interior angles are equal".
This is because, lines L and M are parallel lines cut across by a transversal line.
Angle 1 and angle 2 are within the parallel lines and are called interior angles.
Since they alternate each other along the transversal, they are referred to as alternate interior angles. They are equal.
Therefore, the diagram represents the alternate interior angles theorem.
