# Category:Parallel Lines

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This category contains results about Parallel Lines.

In the words of Euclid:

**Parallel**straight lines are straight lines which, being in the same plane and being produced indefinitely in either direction, do not meet one another in either direction.

## Pages in category "Parallel Lines"

The following 16 pages are in this category, out of 16 total.

### E

### P

- Parallel Lines which intercept Equal Segments on Transversals
- Parallel Straight Lines have Same Slope
- Parallelism implies Equal Alternate Interior Angles
- Parallelism implies Equal Alternate Interior Angles, Corresponding Angles, and Supplementary Interior Angles
- Parallelism implies Equal Corresponding Angles
- Parallelism implies Supplementary Interior Angles
- Parallelism is Equivalence Relation
- Parallelism is Transitive