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If you please Mr. Scrooge, it's gotten colder, and the bookkeeping staff would like an extra shovel full of coal for the fire? Rat #1 : We can't do the bookkeeping, all our pens have turned to inkcicles! Rat #2 : Our assets are frozen!

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If you please Mr. Scrooge, it's gotten colder, and the bookkeeping staff would like an extra shovel full of coal for the fire?

Rat #1: We can't do the bookkeeping, all our pens have turned to inkcicles!

Rat #2: Our assets are frozen!

Ebenezer Scrooge: How would the bookkeeping staff like to be suddenly... UNEMPLOYED?

Rats: [singing] HEAT WAVE. This is my island in the sun...


1. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

To prove two triangles are congruent using the definition, three pairs of sides must be congruent as well as three pairs of angles.

LAME


1. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?

SSS

AAA

SAS

SSA

ASA

SAA


25° bookkeeping staff would like an extra shovel full of coal for the fire?

65°

90°

7. Notes - Congruent Triangles

Is this a guarantee?


65° bookkeeping staff would like an extra shovel full of coal for the fire?

90°

25°

7. Notes - Congruent Triangles

Is this a guarantee?

65°

90°

25°


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?

SSS

AAA

SAS

SSA

ASA

SAA


25° bookkeeping staff would like an extra shovel full of coal for the fire?

7. Notes - Congruent Triangles

Is this a guarantee?

SSS

AAA

SAS

SSA

ASA

SAA


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?

SSS

AAA

SAS

25°

SSA

ASA

SAA


ABC bookkeeping staff would like an extra shovel full of coal for the fire?

DEF

7. Notes - Congruent Triangles

Is this a guarantee?

D

A

SSS

E

AAA

92°

SAS

92°

SSA

B

C

ASA

SAA

F


65° bookkeeping staff would like an extra shovel full of coal for the fire?

7. Notes - Congruent Triangles

Is this a guarantee?

SSS

AAA

SAS

SSA

ASA

SAA


65° bookkeeping staff would like an extra shovel full of coal for the fire?

7. Notes - Congruent Triangles

Is this a guarantee?

SSS

AAA

SAS

SSA

ASA

SAA


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?

SSS

AAA

65°

SAS

SSA

ASA

SAA


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?

SSS

AAA

65°

SAS

SSA

ASA

SAA


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

Is this a guarantee?

SSS

AAA

65°

SAS

SSA

ASA

SAA


A bookkeeping staff would like an extra shovel full of coal for the fire?

ABC

DEF

B

C

7. Notes - Congruent Triangles

Is this a guarantee?

E

SSS

AAA

SAS

SSA

ASA

F

D

SAA


25° bookkeeping staff would like an extra shovel full of coal for the fire?

90°

7. Notes - Congruent Triangles

Is this a guarantee?

SSS

AAA

SAS

SSA

ASA

SAA


25° bookkeeping staff would like an extra shovel full of coal for the fire?

90°

7. Notes - Congruent Triangles

Is this a guarantee?

SSS

AAA

SAS

SSA

ASA

SAA


ABC bookkeeping staff would like an extra shovel full of coal for the fire?

B

DEF

55°

A

65°

C

7. Notes - Congruent Triangles

Is this a guarantee?

E

SSS

AAA

SAS

65°

SSA

F

55°

ASA

D

SAA


35° bookkeeping staff would like an extra shovel full of coal for the fire?

90°

7. Notes - Congruent Triangles

Is this a guarantee?

SSS

AAA

SAS

SSA

ASA

SAA


35° bookkeeping staff would like an extra shovel full of coal for the fire?

35°

35°

90°

7. Notes - Congruent Triangles

Is this a guarantee?

SSS

AAA

SAS

SSA

ASA

SAA


bookkeeping staff would like an extra shovel full of coal for the fire?

SAS

SSS

ASA

SAA

7. Notes - Congruent Triangles

Is this a guarantee?

AAA

AAA

SSA


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

FRS

PQD

R

P

120°

Q

F

120°

35°

D

35°

S

ASA


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

FRS

QSR

R

Q

42°

42°

F

S

SSA


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

FRS

QSR

R

50°

Q

F

50°

S

SAS


7. Notes - Congruent Triangles bookkeeping staff would like an extra shovel full of coal for the fire?

MNR

PTB

B

R

N

P

T

M

SSS


Given: bookkeeping staff would like an extra shovel full of coal for the fire? BC BF, CD FD

Prove: Δ BCD Δ BFD

BC BF, CD FD

BD BD

Reflexive Prop of

Δ BCD Δ BFD

C

Reasons

Statements

B

D

F

7. Notes - Congruent Triangles

Given

SSS


LEGIT bookkeeping staff would like an extra shovel full of coal for the fire?

FAKE OR LEGIT?


FAKE OR LEGIT? bookkeeping staff would like an extra shovel full of coal for the fire?


LEGIT bookkeeping staff would like an extra shovel full of coal for the fire?

FAKE OR LEGIT?


FAKE bookkeeping staff would like an extra shovel full of coal for the fire?

FAKE OR LEGIT?


FAKE OR LEGIT? bookkeeping staff would like an extra shovel full of coal for the fire?


  • 5. Classwork bookkeeping staff would like an extra shovel full of coal for the fire?

  • Congruence Worksheet - 14.4A

  • pg. 230 #8-12, 35-38;

  • pg 238 #8-12; 32-37


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