Vocabulary
Angles
Lines and Line Segments
Intersections
Miscellaneous
100
An object that has a starting point and goes infinitely in one direction.
What is a ray.
100
How many rays form the sides of an angle?
What is 2.
100

The name for a line that has a slope equal to zero and that moves parallel to the X-Axis.

What is a Horizontal Line?

100
Two lines that intersect and form four 90 degree angles.
What are perpendicular lines.
100
It takes this many points to make a line.
What is 2
200
A basic geometric object that has two endpoints.
What is a line segment.
200

The name of the point where both endpoints of the two rays that form an angle meet.

What is the vertex.

200

Two ways to express a line segment containing the points R and S.

What are RS and SR?

200
What is formed when two lines intersect?
What is a point.
200

Points that lie on the same line.

What is collinear

300
A geometric object that goes infinitely in two directions.
What is a line.
300
The name given to non-adjacent angles formed by intersection lines.
What is vertical or opposite angles.
300

The name given to a line that goes straight UP and DOWN.

What is a Vertical Line.

300
What is formed when two planes intersect.
What is a line.
300

Points that lie in the same plane.

What is coplanar

400

Describe a Horizontal Line.

A line that only moves left or right and that never moves up or down.

400

Two other ways to represent Angle ABC.

What is Angle B and Angle CBA?

400

Two lines in the same plane that never meet are called.

What are parallel lines.

400
The term given to two lines or two planes that do not intersect.
What is parallel.
400

How many points are needed to form an Angle?

What is 3.

500

Describe a Vertical Line.

 A line that only moves up or down and that never moves left or right.

500

Two other ways to represent Angle TUV

What is Angle U and Angle VUT?

500

Two segments having the same measure are called.

Congruent segments.

500

The point in the middle of a line segment where a bisector would intersect the segment.

What is the midpoint.

500
A flat surface that extends indefinitely in all directions.
What is a plane.