LINES AND ANGLES - PowerPoint PPT Presentation

Loading...

PPT – LINES AND ANGLES PowerPoint presentation | free to download - id: 5a8c55-MjEzO



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

LINES AND ANGLES

Description:

CHAPTER 3 LINES AND ANGLES * * * * * * * * * * PARALLEL LINES Def: line that do not intersect. Illustration: Notation: l || m AB || CD l m A B ... – PowerPoint PPT presentation

Number of Views:484
Avg rating:3.0/5.0
Slides: 22
Provided by: Pat1184
Category:
Tags: and | angles | lines | lines | parallel

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: LINES AND ANGLES


1
CHAPTER 3
  • LINES AND ANGLES

2
PARALLEL LINES
28
  • Def line that do not intersect.
  • Illustration
  • Notation l m AB CD

p. 129
3
Examples of Parallel Lines
  • Hardwood Floor
  • Opposite sides of windows, desks, etc.
  • Parking slots in parking lot
  • Parallel Parking
  • Streets Laramie LeClaire

4
Examples of Parallel Lines
  • Streets Belmont School

5
PERPENDICULAR LINES
29
  • Def Lines that intersect to form a right angle.
  • Illustration
  • Notation m ? n
  • Key Fact 4 right angles are formed.

p. 79
6
Ex. of Perpendicular Lines
  • Window panes
  • Streets Belmont and Cicero

7
Transversal
30
  • Def a line that intersects two lines at
    different points
  • Illustration

t
p. 131
8
Vertical Angles
  • Two angles that are opposite angles.

t
  • 1 ? ? 4
  • 2 ? ? 3
  • 5 ? ? 8
  • 6 ? ? 7

1
2
3
4
5
6
7
8
9
Vertical Angles
  • Find the measures of the missing angles

t
125 ?
?
125 ?
55 ?
?
55 ?
10
Supplementary Angles/ Linear Pair
  • Two angles that form a line (sum180?)
  • 5?6180
  • 6?8180
  • 8?7180
  • 7?5180
  • 1?2180
  • 2?4180
  • 4?3180
  • 3?1180

11
Supplementary Angles/ Linear Pair
  • Find the measures of the missing angles

t
?
72 ?
108 ?
180 - 72
?
108 ?
12
Corresponding Angles
30
  • Two angles that occupy corresponding positions.

t
  • 1 ? ? 5
  • 2 ? ? 6
  • 3 ? ? 7
  • 4 ? ? 8

Top Left
Top Right
Bottom Left
Bottom Right
Top Left
Top Right
Bottom Left
Bottom Right
p. 131 143
13
Corresponding Angles
  • Find the measures of the missing angles

t
145 ?
35 ?
?
145 ?
14
Alternate Interior Angles
30
  • Two angles that lie between parallel lines on
    opposite sides of the transversal

t
  • 3 ? ? 6
  • 4 ? ? 5

1
2
3
4
5
6
7
8
p. 131 143
15
Alternate Interior Angles
  • Find the measures of the missing angles

t
82 ?
?
98 ?
82 ?
16
Alternate Exterior Angles
30
  • Two angles that lie outside parallel lines on
    opposite sides of the transversal

t
  • 2 ? ? 7
  • 1 ? ? 8

1
2
3
4
5
6
7
8
p. 131 143
17
Alternate Exterior Angles
  • Find the measures of the missing angles

t
120 ?
?
60 ?
120 ?
18
Consecutive Interior Angles
30
  • Two angles that lie between parallel lines on the
    same sides of the transversal

t
  • 3 ?5 180
  • 4 ?6 180

1
2
3
4
5
6
7
8
p. 131 143
19
Consecutive Interior Angles
  • Find the measures of the missing angles

t
180 - 135
135 ?
?
45 ?
20
HW
  • P. 132 133
  • 6 9
  • 21 26
  • P. 146 - 147
  • 7 - 17

21
This powerpoint was kindly donated to
www.worldofteaching.com http//www.worldofteac
hing.com is home to over a thousand powerpoints
submitted by teachers. This is a completely free
site and requires no registration. Please visit
and I hope it will help in your teaching.
About PowerShow.com