Geometry Topic 2 Flashcards

Front

Point

Back

A location in space with no dimensions (no length, width, or depth).

Front

Line

Back

A straight, continuous arrangement of infinitely many points extending in both directions without end.

Front

Parallel Lines

Back

Two lines in the same plane that do not intersect, no matter how far they are extended.

Front

Theorem

Back

A statement or proposition that can be proven true using definitions, postulates, or previously proven theorems.

Front

Transversal

Back

A line that intersects two or more other lines in a plane at different points.

Front

Corresponding Angles

Back

Angles that are in the same relative position at each intersection where a transversal crosses parallel lines.

Front

Alternate Interior Angles

Back

Angles on opposite sides of the transversal and inside the two lines.

Front

Consecutive Interior Angles (Same-Side Interior Angles)

Back

Angles on the same side of the transversal and inside the two lines; their measures are supplementary.

Front

Converse

Back

The reverse of a given conditional statement. Example: 'If corresponding angles are congruent, then the lines are parallel' is the converse of the Corresponding Angles Postulate.

Front

Parallel Line Angle Relationship Theorems

Back

These include the converses of the Corresponding Angles Postulate, Alternate Interior Angles Theorem, and Consecutive Interior Angles Theorem, used to prove two lines are parallel.