# Types of Lines

## Types of Lines

Parallel Lines: Two lines that lie in the same plane and do not intersect.

Skew Lines: Two lines that do not lie in the same plane and do not intersect.

Perpendicular Lines: A line that is perpendicular to a segment at its midpoint.

Transversal: A line that intersects two or more coplanar lines at different points.

Same-side Interior Angles: Two angles that are formed by two lines and transversal, and lie between the two lines on the same side of the transversal.

Alternate Interior Angles: Two angles that are formed by two lines and a transversal, and lie between the two lines on the opposite sides of the transversal.

Alternate Exterior Angles: Two angles that are formed by two lines and a transversal, and lie outside the two lines on the opposite sides of the transversal.

Corresponding Angles: Two angles that are formed by two lines and a transversal, and occupy corresponding positions.

Converse: The statement formed by switching the hypothesis and the conclusion of an if-then statement.

Construction: A geometric drawing that uses a limited set of tools, usually a compass and a straightedge.

Translation: A transformation that slides each point of a figure the same distance in the same direction.

Image: The new figure that results from the transformation of a figure in a plane.

Transformation: An operation that maps, or moves, a figure onto an image.

Midpoint: The point on a segment that divides in into two congruent segments.

Segment Bisector: A segment, ray, line, or plane that intersects a segment at its midpoint.

Bisect: To divide into two congruent parts.

Angle Bisector: A ray that divides an angle into two angles that are congruent.

Complementary Angles: Two angles whose measures have a sum of 90˚.

Complement of an Angle: The sum of the measures of an angle and its complement of 90˚.

Supplementary Angles: Two angles whose measures have a sum of 180˚.

Supplement of an Angle: The sum of the measures...