<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />

# 6.3: Identify Types of Lines

Difficulty Level: At Grade Created by: CK-12
Estimated3 minsto complete
%
Progress
Practice Parallel and Perpendicular Lines

MEMORY METER
This indicates how strong in your memory this concept is
Progress
Estimated3 minsto complete
%
Estimated3 minsto complete
%
MEMORY METER
This indicates how strong in your memory this concept is

### Notes/Highlights Having trouble? Report an issue.

Color Highlighted Text Notes

### Vocabulary Language: English

Angle

A geometric figure formed by two rays that connect at a single point or vertex.

Intersecting lines

Intersecting lines are lines that cross or meet at some point.

Parallel

Two or more lines are parallel when they lie in the same plane and never intersect. These lines will always have the same slope.

Perpendicular lines

Perpendicular lines are lines that intersect at a $90^{\circ}$ angle.

Straight angle

A straight angle is a straight line equal to $180^{\circ}$.

Show Hide Details
Description
Difficulty Level:
Authors:
Tags:
Subjects: