Angles
An angle that is 90 o
Right Angle
Lines that never cross and are always the same distance apart
Parallel Lines
How you name a point
With a capital letter
An exact position or location
Point
A figure formed by two rays or line segments that share an endpoint
Angle
An angle less than 90o
Lines or line segments that intersect to form right angles
Perpendicular Lines
You name this using the points included or a single lowercase letter
Line
An exact location showing the end of a line segment or ray
Endpoint
An angle more than 90o but less than 180o
Obtuse Angle
A line, ray, or segment that crosses another line, ray, or segment at some point
Intersecting Line
You name this by drawing a straight line on top of the letters
Line Segment
A straight path extending in both directions with no endpoints
Line
An angle that is 180o
Straight Line Angle
What does this symbol notate
∥
Parallel
This is how you label a ray
with an arrow on top facing the way of the ray
Part of a line that includes two endpoints
Line Segment
An angle more than 180o but less than 360o
Reflex Angle
What does this symbol notate
⊥
Perpendicular
Two ways you can name an angle
<the letter of the vertex
<all 3 letters with the vertex in the middle
<a number
A part of a line that continues on in one direction from an endpoint
Ray