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Quick Review of Parallel, Perpendicular, and Skew
Parallel Lines: Do not intersect, coplanar
Skew Lines: Do not intersect, not coplanar
Perpendicular Lines: Intersect at right angle
Sep 16­5:40 AM
DO NOW:
Aug 24­9:55 PM
1
What is a Transversal?
A line that intersects two or more coplanar lines at different points. For a transversal passing through two lines, how many distinct angles are formed? Sep 20­8:06 AM
Angles Formed by Transversals (No. 1)
Two angles are corresponding angles if they have corresponding positions.
Sep 20­8:06 AM
2
Angles Formed by Transversals (No. 2)
Two angles are alternate interior angles if they lie between the two lines and on opposite sides of the transversal.
Sep 20­8:06 AM
Angles Formed by Transversals (No. 3)
Two angles are alternate exterior angles if they lie outside the two lines and on opposite sides of the transversal.
Sep 20­8:06 AM
3
Angles Formed by Transversals (No. 4)
Two angles are consecutive interior angles if they lie between the two lines and on the same side of the transversal.
Sep 20­8:06 AM
Exploring Parallel Lines
Sep 20­8:06 AM
4
Angle Relationships
Corresponding Angles
Congruent
Congruent
Consecutive Interior Angles
Supp.
Alternate Interior Angles
Alternate Exterior Angles
Congruent
Sep 20­8:06 AM
Find x!!!!!!
Sep 20­8:06 AM
5
Let's Try Another
Sep 20­8:06 AM
One More :)
Sep 20­8:06 AM
6
Practice: 3.1 WKBK pg 44 #11‐16
3.2 WKBK pg 47 #11‐22
Sep 8­11:43 PM
7
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