# Definitions

### 20 terms by jweitzel2013

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Congruent -

### segments that have equal lengths.

Congruent segments -

### point that divides the segment into two congruent segments.

Midpoint of a Segment -

### line, segment, ray, or plane that intersects the segment at its midpoint.

Bisector of a Segment -

### angles that have equal measure.

Congruent Angles -

### ray that divides the angle into two congruent adjacent angles.

Bisector of an Angle -

### two angles whose measures have the sum 90.

Complementary Angles -

### two angles whose measures have the sum 180.

Supplementary Angles -

### two angles such that the sides of one angle are opposite rays to the sides of the other angle.

Vertical Angles -

Parallel Lines -

Skew Lines -

Transversal -

### two nonadjacent interior angles on opposite sides of the transversal.

Alternate Interior Angles -

### two interior angles on the same side of the transversal.

Same-Side Interior Angles -

### two angles in corresponding positions relative to the two lines.

Corresponding Angles -

### two lines that intersect to form right angles.

Perpendicular Lines -

### points all in one line.

Collinear Points -

Coplanar Lines -

### points on the same plane.

Coplanar Points -

Example: