Loading...

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

The Adobe Flash plugin is needed to view this content

CHAPTER 3

- LINES AND ANGLES

PARALLEL LINES

28

- Def line that do not intersect.
- Illustration
- Notation l m AB CD

p. 129

Examples of Parallel Lines

- Hardwood Floor
- Opposite sides of windows, desks, etc.
- Parking slots in parking lot
- Parallel Parking
- Streets Laramie LeClaire

Examples of Parallel Lines

- Streets Belmont School

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

Ex. of Perpendicular Lines

- Window panes
- Streets Belmont and Cicero

Transversal

30

- Def a line that intersects two lines at

different points - Illustration

t

p. 131

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

Vertical Angles

- Find the measures of the missing angles

t

125 ?

?

125 ?

55 ?

?

55 ?

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

Supplementary Angles/ Linear Pair

- Find the measures of the missing angles

t

?

72 ?

108 ?

180 - 72

?

108 ?

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

Corresponding Angles

- Find the measures of the missing angles

t

145 ?

35 ?

?

145 ?

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

Alternate Interior Angles

- Find the measures of the missing angles

t

82 ?

?

98 ?

82 ?

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

Alternate Exterior Angles

- Find the measures of the missing angles

t

120 ?

?

60 ?

120 ?

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

Consecutive Interior Angles

- Find the measures of the missing angles

t

180 - 135

135 ?

?

45 ?

HW

- P. 132 133
- 6 9
- 21 26
- P. 146 - 147
- 7 - 17

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.