Geometry
Line Relationships
Polygons (shapes with straight sides)
100
An exact location in space
What is a point
100

Endpoints on point ends 

What is a line segment

100
Polygon with 3 sides
What is a triangle
200
A straight path of points that goes on and on in two directions
What is a line
200

A line starts at an endpoint and goes on forever in one direction.

What is ray?

200
polygon with 8 sides
What is an octogon
300

An angle that  is less than 90 degrees

Acute

300

Lines that never intersect or cross

What parallel lines

300
Polygon with 5 sides
What is a pentagon
400

An angle that is more than 90 degrees but less than 180

Obtuse 

400

Lines that pass through the same point and make a x or v

What are intersecting lines

400
Polygon with 4 sides
What is a quadrilateral
500

An angle that is exactly 180 degrees

a straight angle 

500

Lines that form square corners, right angles, 90 degress

What are perpendicular lines

500
Polygon with 6 sides
What is a hexagon
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