Download presentation

Presentation is loading. Please wait.

Published bySky Kinyon Modified over 2 years ago

1
3.1 Identify Pairs of Lines and Angles

2
Parallel Lines Coplanar Do not intersect Segments and rays are parallel if they lie on parallel lines. A D C B Triangles, like those above in red, indicate that 2 lines are parallel.

3
Parallel planes if they never intersect

4
A D E H G CB F

5
A D E H G CB F

6
Skew Lines: Do not intersect, but do not lie in the same plane. A D E H G CB

7
A D E H G CB F

8
A D E H G CB F

9
Parallel Postulate #13: Parallel Postulate If there is a line and a point not on the line,

10
Parallel Postulate #13: Parallel Postulate If there is a line and a point not on the line, then there is exactly one line through the point and parallel to the line

11
Perpendicular Postulate #14: Perpendicular Postulate If there is a line and a point not on the line, then there is exactly one line through the point and perpendicular to the line

12
Transversal; intersects 2 or more coplanar lines Corresponding Angles Same side of transversal Corresponding position

14
Alternate Exterior Angles “Alternate” opposite sides of transversal “Exterior” outside of the two lines

15
Alternate Interior Angles “Alternate” opposite sides of transversal “Interior” inside of the two lines

16
Consecutive Interior Angles “Consecutive” “together”; same side of the transversal “Interior” inside of the two lines

21
A#20: Page 150 # 3 - 32

Similar presentations

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google