1.notes - congruent triangles
DESCRIPTION
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! - PowerPoint PPT PresentationTRANSCRIPT
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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...
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1. Notes - Congruent Triangles
LAME
To prove two triangles are congruent using the definition, three pairs of sides must be congruent as well as three pairs of angles.
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1. Notes - Congruent TrianglesIs this a guarantee?
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7. Notes - Congruent TrianglesIs this a guarantee?
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7. Notes - Congruent TrianglesIs this a guarantee?
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7. Notes - Congruent TrianglesIs this a guarantee?
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7. Notes - Congruent TrianglesIs this a guarantee?
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7. Notes - Congruent TrianglesIs this a guarantee?
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
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7. Notes - Congruent TrianglesIs this a guarantee?
90°65°25°
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7. Notes - Congruent TrianglesIs this a guarantee?
90°
65°
25°25°90°
65°
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
25°
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
25°
√
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
√
A
BC
ABC DEF
€
≅
92°
D
E
F
92°
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
65°
√
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
65°
√
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
65°
√
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
65°
√
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
65°
√
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
√
A
B
C
D
E
F
ABC DEF
€
≅
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
√
90°
25°
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
√90°
25°
√
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
√
√65°
55°A
B
C
65°
55°
D
E
F
ABC DEF
€
≅
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
√
√90° 35°
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7. Notes - Congruent TrianglesIs this a guarantee?
SSS
AAA
SAS
SSA
ASA
SAA
√
√
√
35°
90°
35°
35°
√
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7. Notes - Congruent TrianglesIs this a guarantee?
AAA
SSA
AAA
SAS
SSS
ASA
SAA
√
√
√
√
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7. Notes - Congruent Triangles
ASA
FRS PQD
€
≅
S
F
R
120°
35°D
P
Q120°
35°
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7. Notes - Congruent Triangles
SSA
FRS QSR
€
≅
S
F
R
42°
42° Q
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7. Notes - Congruent Triangles
SAS
FRS QSR
€
≅
S
F
R
50°
50°Q
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7. Notes - Congruent Triangles
SSS
MNR PTB
€
≅
M
N
R
T
P
B
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7. Notes - Congruent Triangles
Given: BC BF, CD FD
Prove: Δ BCD Δ BFD B
C
F
D
BC BF, CD FD Given
BD BD Reflexive Prop of
Δ BCD Δ BFD SSS
Statements Reasons
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FAKE OR LEGIT?
LEGITLEGIT
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FAKE OR LEGIT?
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FAKE OR LEGIT?
LEGITLEGIT
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FAKE OR LEGIT?
FAKEFAKE
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FAKE OR LEGIT?
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5. Classwork
Congruence Worksheet - 14.4A
• pg. 230 #8-12, 35-38;
• pg 238 #8-12; 32-37