# 3.1: Lines and Angles

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**At Grade**Created by: CK-12### Image Attributions

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Alternate Exterior Angles Theorem
Alternate Interior Angles Theorem
angles
(18 more)
CK.MAT.ENG.SE.1.Geometry-Basic.3
CK.MAT.ENG.SE.2.Geometry.3
coordinate plane
Corresponding Angles Postulate
distance formula
equations of lines
Lines
Parallel Line Postulate
Parallel Lines
Perpendicular Line Postulate
perpendicular lines
planes
proofs
proving parallel lines
Same Side Interior Angles Theorem
slopes
the Distance Formula
transversals

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angles
Parallel Lines
Lines
(18 more)
equations of lines
perpendicular lines
distance formula
slopes
proving parallel lines
CK.MAT.ENG.SE.1.Geometry-Basic.3
planes
Alternate Interior Angles Theorem
Alternate Exterior Angles Theorem
Corresponding Angles Postulate
Perpendicular Line Postulate
Parallel Line Postulate
transversals
proofs
the Distance Formula
Same Side Interior Angles Theorem
CK.MAT.ENG.SE.2.Geometry.3

Date Created:

Feb 22, 2012
Last Modified:

Feb 03, 2016
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