**Definition of Skew Lines**

- Two nonparallel lines in space that do not intersect are called skew lines.

**Examples of Skew Lines**

- are skew lines in the figure shown.

**Solved Example on Skew Lines**

Which of the following are skew lines?

Choices:

A. and

B. and

C. and

D. and

Correct Answer: D

Solution:

Step 1:Two nonparallel lines in space that do not intersect are called Skew lines.

Step 2:Among the pairs, the lines and are nonparallel and lie in different planes, and do not intersect each other.

Step 3:So, and are skew lines among the given pairs.

**Related Terms for Skew Lines**

- Parallel Lines
- Space