points
These are often shown as dots to represents location.
points
This is a straight path that extends in both directions forever.
a line
A part of line which begins at one point and ends at another point.
a line segment
This is part of a line that starts at a point then extends along the line in one direction forever.
a ray
What is the classification of an angle that measures exactly 90 degrees?
A right angle.
What do we use to name points?
capital letters
When two lines intersect perfectly to form a right angle, they are called _______.
Perpendicular
What is used at both ends of a line segment to show it stops?
Points
What is used to show the "starting" of a ray?
a point
What is the classification of an angle that measures less than 180 degrees?
An acute angle.
How many points are used to name an angle?
THREE.
When two lines never intersect, they are said to be _______.
Parallel
In segment NM, this is what points N and M are.
endpoints of segment NM
Do rays go on forever in both directions?
NO
What is an angle that measures larger than 90 degrees?
An obtuse angle.
When two rays intersect to form an angle, that point is called what?
A vertex.
When two lines cross in no special way they are called _________.
How would you name a line segment with endpoints A and B?
AB with a line segment over it OR
Line segment AB
How many rays does it take to form an angle?
TWO
Give the name for an angle that has a vertex point B and rays that go through points A and C.
ANGLE ABC