# Chapter 1

### 17 terms by goldsteinm

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### Point

Has no dimension. Location in space.

### Plane

Extends in two dimensions infinitely.

### line

Extends in one dimension infinitely.

### Collinear

Two or more points on the same line.

### Coplanar

Tow or more objects on the same plane.

### Line Segment

Part of a line that consists of 2 endpoints and all points between.

### Ray

Part of a line that consists of initial starting point and all points to one side.

### Opposite Ray

Two collinear rays that share the same initial point but no other points.

### Intersection

When two or more objects cross or meet.

### Angle

Two rays that have the same initial starting point.

### Congruent

Objects having the same shape, and measurement.

Two angles who share the same vertex and side but no common interior points.

### Midpoint

A point that divides a segment into two congruent parts.

### Bisect

Cuts something into two congruent parts.

### Linear Pair

Adjacent angles whose non-common side is a straight angle.

### Complementary Angles

Any two angles whose sum is 90.

### Supplementary Angles

Any two angles whose sum is 180.

Example: