That the corresponding angles are equal and that the alternate angles are equal and that angles on a straight line add up to 180 degrees.
Alternate interior angles.
Alternate Interior Angles
Adjacent Angles
Alternate interior angles are equal on a transversal that passes through parallel lines.
When 2 parallel lines are cut by a transversal some of the pairs of angles which are formed are called alternate angles whereas other pairs are called interior angles.
Alternate Interior Angles
Two lines are crossed by one another line called the transversal. The pairs of angles on opposite sides of the transversal but inside the two lines are called alternative interior angles.
a transversal line If a transversal intersects two parallel lines, then the alternate interior angles are congruent.
Providing that the lines are parallel that the transversal passes through then it will have two equal alternate angles that are on opposite sides of the transversal.
they are alternate (which means opposite of) the transversal and they are INTERIOR (inside) the paralell lines
Co-interior angles are not congruent. The only case in which they would be is if the transversal was perpendicular to the two parallel lines.
Co-interior angles are not congruent. The only case in which they would be is if the transversal was perpendicular to the two parallel lines.