The sides of a ladder are parallel. Since the rungs are perpendicular to one side of the ladder, what conclusion can be made?
The sides are parallel to the rungs.
The rungs are perpendicular to the other side.
The sides are perpendicular to each other.
The rungs are parallel to the sides.
When a line passes through two parallel lines, then we can use corresponding angles and alternate interior and exterior angles to determine the congruent angles. In this set-up, it is understood that B. The rungs are perpendicular to the other side.
