Basic Notation & Diagram Markings Flashcards
Notation & Diagram Markings
What type of figure is this?
Segment
What type of figure is this?
Line
What type of figure is this?
Angle
How is a line segment different from a line?
A segment has two endpoints but a line extends forever in both directions
What is the rule for naming segments?
The letters must be the endpoints
What is the rule for naming lines?
The letters can be any two points on the line
What is the rule for naming rays?
First letter is the endpoint, second letter is any other point on the line
What is the rule for naming angles?
Middle letter must be the vertex
For which type of figure(s) does the order of the letters matter?
Rays (first letter MUST be the endpoint)
Angles (vertext MUST be middle letter)
How do you read this out loud?
Segment AB
How do you read this out loud?
Ray AB
How do you read this out loud?
Line AB
How do you read this out loud?
Angle ABC
What does this symbol mean?
Parallel
What does this symbol mean?
Perpendicular
What does this symbol mean?
Congruent
What do these diagram markings mean?
The segments are congruent
What do these diagram markings mean?
The segments are NOT congruent
What do these diagram markings mean?
The angles are congruent
What do these diagram markings mean?
The angles are congruent
What do these diagram markings mean?
The angles are NOT congruent
What do these diagram markings mean?
The lines are parallel
What does this diagram marking mean?
The lines are perpendicular
What does parallel mean?
Lines that will never cross, even if extended
What does perpendicular mean?
Lines that intersect at a 90 degree angle
What does intersect mean?
to cross or touch
What does congruent mean?
the same size as
