Alternate Angles Flashcards

Angles that are on opposite sides of a transversal and inside two parallel lines. They are equal.

A line that crosses two or more other lines.

Lines that are always the same distance apart and never meet.

Alternate angles form a 'Z' shape when a transversal crosses two parallel lines.

If two parallel lines are crossed by a transversal, alternate angles are equal.

If one alternate angle is 50°, the other alternate angle is also 50°.

Alternate angles are on opposite sides of the transversal, while corresponding angles are on the same side.

If the lines are not parallel, alternate angles are not necessarily equal.

Alternate angles are often used in geometric proofs involving parallel lines.

Alternate angles help identify congruent triangles when parallel lines are involved.