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# Reviewing the Segment Addition Postulate - PowerPoint PPT Presentation

Reviewing the Segment Addition Postulate. S. Q. R. 3x+1+2x-2=64 5x-1=64 5x=65 x=13 QR=3(13)+1. Reviewing Midpoint. S. Q. R. 2x+5=5x-1 6=3x x =2 QR=2(2)+5 QR=4+5 QR=9. Let’s Get It Started . . .

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Presentation Transcript

S

Q

R

3x+1+2x-2=64

5x-1=64

5x=65

x=13

QR=3(13)+1

Reviewing Midpoint

S

Q

R

2x+5=5x-1

6=3x

x=2

QR=2(2)+5

QR=4+5

QR=9

Let’s Get It Started . . .

The Bronx Zoo has a green lizard, a red crocodile, and a purple monkey. They are the only animals of their kind in existence. One violently windy Saturday, their name tags blew off, and their keeper’s journal was torn to shreds. Inasmuch as they were to appear on television at 7:30 Sunday morning, the night watchman had to replace their name tags. He managed to piece together the following information from the mangled journal:

1. Wendy cannot get along with the lizard.

2. Katie playfully took a bite out of the monkey’s ear one month ago.

3. Wendy never casts a red reflection in the mirror.

4. Jody has the personality of a crocodile, but she isn’t one.

Match the animals with their names.

Zoo

1. Wendy cannot get along with the lizard.

2. Katie playfully took a bite out of the monkey’s ear one month ago.

3. Wendy never casts a red reflection in the mirror.

4. Jody has the personality of a crocodile, but she isn’t one.

### Lesson 1-3

Measuring and Constructing Angles

Angles

Angle: formed by two rays sharing an endpoint (vertex).

Q

Exterior

Interior

S

R

Vertex

Naming Angles

A

Q

1

5

B

2

C

R

S

D

Angles Congruence and Equality

Congruent Angles: angles with the same measure.

Q

R

The numbers(the measures are equal)

S

A

The figures(the angles are congruent)

B

C

Classifying Angles

Acute ObtuseRight Straight