Lines, Line Segments, and Rays
Types of Lines
Polygons
Geometry Vocabulary
Angles
100
This is a straight line that goes on and on in both directions.
What is a line?
100
These lines are the same distance apart ALWAYS.
What are parallel lines?
100
It has three sides and three angles.
What is a triangle?
100
A 2 dimensional figure with three or more sides that is closed.
What is a polygon?
100
A 90 degree angle.
What is a right angle?
200
This looks like a line, but has a beginning and end.

What is a line segment?

200
These lines will cross.
What are intersecting lines?
200
It has four sides and four angles.
What is a quadrilateral
200
Where two lines or rays meet.
What is a vertex
200
An angle that is less than 90 degrees.
What is an acute angle?
300
This has a starting point, but goes on and on in one direction.
What is a ray?
300
These lines are not touching, but if you extended them out, they would.
What are intersecting lines?
300
It has five sides and five angles.
What is a pentagon?
300
Equal size, Equal shape
What is congruent
300
An angle that is greater than 90 degrees.

What is an obtuse angle?

400
Two lines that will never intersect, , they are not parallel they are on different planes?


What are skew lines?
400
An example is railroad tracks.
What are parallel lines?
400
It has six sides and six angles.
What is a hexagon?
400
Same shape, Different size
What is similiar
400
An angle with 180 degrees
What is a straight angle?
500
An exact location.
What are points?
500
Intersecting lines that form right angles
What are perpendicular lines?
500
It has eight sides and eight angles.
What is an octagon?
500
a closed plane figure where all sides are congruent and all angles are equal.
What is a Regular Polygon?
500
Tool used to measure an angle?
What is a protractor?
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