math 1 february 27 th turn in homework – page 34

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Math 1 February 27 th Turn in homework – page 34 Warm-up: Copy and complete the following To use the SSS postulate to show ∆ABC ∆EFG, the following must be true: Turn in warm-ups today. Make sure each day is separated from the

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Page 1: Math 1 February 27 th Turn in homework – page 34

Math 1February 27th

Turn in homework – page 34• Warm-up: Copy and complete the following

To use the SSS postulate to show ∆ABC ∆EFG, the following must be true:

Turn in warm-ups today. Make sure each day is separated from the

next.

Page 2: Math 1 February 27 th Turn in homework – page 34
Page 3: Math 1 February 27 th Turn in homework – page 34
Page 4: Math 1 February 27 th Turn in homework – page 34

Proving Triangles Congruent

Proving Triangles Congruent

Powerpoint hosted on www.worldofteaching.comPlease visit for 100’s more free powerpoints

Page 5: Math 1 February 27 th Turn in homework – page 34

Two TRIANGLES with exactly the same size and shape.

Congruent Triangles

A C

B

DE

F

Page 6: Math 1 February 27 th Turn in homework – page 34

Side-Side-Side (SSS)

1. AB DE

2. BC EF

3. AC DF

ABC DEF

B

A

C

E

D

F

Page 7: Math 1 February 27 th Turn in homework – page 34

Side-Angle-Side (SAS)

1. AB DE

2. A D

3. AC DF

ABC DEF

B

A

C

E

D

F

included angle

Page 8: Math 1 February 27 th Turn in homework – page 34

Angle-Side-Angle (ASA)

1. A D2. AB DE

3. B E

ABC DEF

B

A

C

E

D

F

Included

side

Page 9: Math 1 February 27 th Turn in homework – page 34

The side between two angles

Included Side

GI HI GH

Page 10: Math 1 February 27 th Turn in homework – page 34

Name the included angle:

Y and E

E and S

S and Y

Included Side

SY

E

YE

ES

SY

Page 11: Math 1 February 27 th Turn in homework – page 34

Angle-Angle-Side (AAS)

1. A D

2. B E

3. BC EF

ABC DEF

B

A

C

E

D

F

Non-included

side

Page 12: Math 1 February 27 th Turn in homework – page 34

Warning: No SSA Postulate

A C

B

D

E

F

NOT CONGRUENT

There is no such thing as an SSA

postulate!

Page 13: Math 1 February 27 th Turn in homework – page 34

Warning: No AAA Postulate

A C

B

D

E

F

There is no such thing as an AAA

postulate!

NOT CONGRUENT

Page 14: Math 1 February 27 th Turn in homework – page 34

The Congruence Postulates

SSS correspondence

ASA correspondence

SAS correspondence

AAS correspondence

SSA correspondence

AAA correspondence

Page 15: Math 1 February 27 th Turn in homework – page 34

Name That Postulate

SASASA

SSSSSA

(when possible)

1.2.

3.4.

Page 16: Math 1 February 27 th Turn in homework – page 34

Name That Postulate(when possible)

ASA

SAS

AAA

SSA

5.6.

7.8.

Page 17: Math 1 February 27 th Turn in homework – page 34

Name That Postulate(when possible)

SAS

SAS

SAS

Reflexive Property

Vertical Angles

Vertical Angles

Reflexive Property SS

A

9.10.

11. 12.

Page 18: Math 1 February 27 th Turn in homework – page 34

HW: Name That Postulate(when possible)

13.14.

15.16.

Page 19: Math 1 February 27 th Turn in homework – page 34

(when possible)HW: Name That Postulate

17.18.

19.

Page 20: Math 1 February 27 th Turn in homework – page 34

Let’s PracticeIndicate the additional information needed to enable us to apply the specified congruence postulate.

For ASA:

For SAS:

B D

For AAS: A F

AC FE

Page 21: Math 1 February 27 th Turn in homework – page 34

HWIndicate the additional information needed to enable us to apply the specified congruence postulate.

For ASA:

For SAS:

For AAS:

20.

21.

22.

Page 22: Math 1 February 27 th Turn in homework – page 34

HOMEWORK• COMPLETE PAGE 35 (ALL)

Page 23: Math 1 February 27 th Turn in homework – page 34
Page 24: Math 1 February 27 th Turn in homework – page 34