If two angles are vertical they are also congruent.When two lines intersect to make an X, angles on opposite sides of the X are called vertical angles. These angles are equal, and here's the official theorem that tells you so. Vertical angles are congruent: If two angles are vertical angles, then they're congruent. (Hope This Helps)
To polygons are <span>congruent when </span>their corresponding sides are equal in length and their corresponding angles are equal in measure. so he's not true
