A line that has an endpoint on one side and goes on forever in one direction
What is a ray?
100
you name this figure using a mini symbol and three points (or letters)
What is an angle?
200
When two lines or line segments intersect to form perfect right angles
What are perpendicular lines or line segments
200
An angle that is less than 90 degrees (the cute little angles) are called this
What is acute?
300
This geometric figure can be named in two ways. It can be named either backwards or forwards using the two endpoints.
What is a line segment?
300
Those angles that are bigger than 90 degrees are just so big! They are really __________!
What is obtuse?
400
This is the way that two railroad tracks (lines) lay, side by side.
What are parellel lines?
400
When naming an angle, be sure to name the _________ in the middle of the three points (or letters)
What is the vertex?
500
When naming a line, a line segment, a ray, or an angle.... you may use the right letters for the points but you will get the answer WRONG on the test if you forget to include this...... bad bad bad.....
What are the mini symbols?
500
In the definition of an angle, any angle is really made up of two of these.