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Geometry NotesWeek 2
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Definitions
Not Right Angles
90°
C
B
A
Right Angles
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Definitions
88°
C
B
A
Acute Angles
Not Acute Angles
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Definitions
91°
C
B
A
Obtuse Angles
Not Obtuse Angles
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DefinitionsVertical Angles
C
AD
F
Not Vertical Angles
BE
H
G
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Definitions
Not Complementary Angles
H
GBE
Complementary Angles
BE
30°
60°
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Definitions
Not Supplementary Angles
BE
H
G
Supplementary Angles 120°
60°BEl
m
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6. Group DefinitionsLinear Angles
BE
F
R
Not Linear Angles
40° 140°80°
100°
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Definitions
Not Angle Bisectors
Angle Bisectors
45°45°
20°
20°
BA
CD
E
F
G
H
BE BE
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DefinitionsPolygons
Not Polygons
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DefinitionsConvex Polygons
Concave Polygons
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Definitions
What We Can Write
ABCD
BCDA
CDAB
DABC
What We Can’t Write
DBCA
ADBC
A
B
C
D
Why can’t we write it like this?
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CAMP SITE
MACP TISE
PMAC TISE
ACPM ETIS
DefinitionsCongruent Polygons
C
P
M
A
E
T
I
S
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3. Group DefinitionsWhich polygon is congruent to ABCD? Write the congruency statement?
ABCDE
QLMNP
100130 130
100130 130
A
E
D C
B
Q
P
N M
L
F
G
HJ
K
B
C
SF
G
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DefinitionsEquilateral Polygons
Equiangular Polygons
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DefinitionsRegular Polygons