3.2 Angles and Parallel Lines - PowerPoint PPT Presentation

1 / 9
About This Presentation
Title:

3.2 Angles and Parallel Lines

Description:

3.2 Angles and Parallel Lines Assignment 22: 3.2 WB Pg. 33 # 2 22 even Corresponding Angles Postulate If two parallel lines are cut by a transversal, then ... – PowerPoint PPT presentation

Number of Views:151
Avg rating:3.0/5.0
Slides: 10
Provided by: SDH78
Category:
Tags: angles | lines | parallel

less

Transcript and Presenter's Notes

Title: 3.2 Angles and Parallel Lines


1
3.2 Angles and Parallel Lines
  • Assignment 22 3.2 WB Pg. 33 2 22 even

2
Corresponding Angles Postulate
  • If two parallel lines are cut by a transversal,
    then corresponding angles are congruent.

t
C
A
l
G
E
m
B
D
F
H
3
Alternate Interior Angles Theorem
  • If two parallel lines are cut by a transversal,
    then alternate interior angles are congruent.

t
l
B
A
m
C
D
4
Same Side/Consecutive Interior Angles Theorem
  • If two parallel lines are cut by a transversal,
    then same-side interior angles are supplementary.

t
l
B
A
m
D
C
5
Alternate Exterior Angles Theorem
  • If a transversal intersects two parallel lines,
    then alternate exterior angles are congruent.

t
l
A
B
m
C
D
6
Perpendicular Transversal Theorem
  • In a plane, if a line is perpendicular to one of
    two parallel lines, then it is also perpendicular
    to the other.

 
 
7
Class Exercises 3.2
  • Assume that a // b and c // d.
  • 1. If then

a
b
c
1
2
3
4
8
7
6
5
9
10
11
12
d
15
16
14
13
8
Class Exercises 3.2
  • Find the value of x and y.
  • 2.

y
x
60
61
9
Class Exercises 3.2
  • Find the value of x and y.
  • 3.

120
x
(3y 6)
Write a Comment
User Comments (0)
About PowerShow.com