The Same
Old Thing
X Marks the
Spot
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What’ s
Your Type?
Prove It!
Short Cuts
How’s Your
Memory?
What’s your type?
30°
18
10
120°
30°
10
 √
Sum of two nonadjacent
interior angles
 √
Triangle with two legs
and a base
 √
Triangle with two 40°
angles
 √
Triangle with sides
3 cm, 4 cm and 5 cm.
 √
Triangle that is always
acute
 √
m A = 6x + 11
mB = 3x + 2
mC = 5x - 1
 √
The Same Old Thing
 √
Name the congruent
figures
Q
P
R
S
 √
Name the congruent
figures
B
A
C
D
 √
Name the congruent
figures
B
C
W
D
A
X
Z
Y
 √
Name the congruent
triangles
L
N
S
K
Q
R
M
 √
Name the congruent
figures
Q
P
T
S
R
 √
Name the congruent
triangles
B
A
D
C
 √
Name the congruent
triangles
M
O
N
P
Q
 √
X marks the spot
 √
Find the value of x
J
G
M  G
N  H
N
(2x - 5)
142 24
M
P
H
 √
Find the value of x
(8x + 5)
(2x + 11)
3x
 √
Find the value of x
34
56
45
x
 √
Find the value of x
38
(10x + 9)
(7x + 1)
 √
Find the value of x
60
x
 √
Find the value of x and y
y°
50°
x°
 √
Find the value of x and y
y°
x°
50°
 √
Prove it!
 √
State the third congruence that
must be given to prove triangles
congruent.
Given: DE  MN M D
Prove:  DEF   MNO
Method: SAS
 √
State the third congruence that
must be given to prove triangles
congruent.
Given: FE  ON F O
Prove:  DEF   MNO
Method: AAS
 √
State the third congruence that
must be given to prove triangles
congruent.
Given: DF  MO F O
Prove:  DEF   MNO
Method: ASA
 √
State the third congruence that
must be given to prove triangles
congruent.
Given: A  X B  Y
Prove:  ABC   XYZ
Method: AAS
 √
State the third congruence that
must be given to prove triangles
congruent.
Given: A  X AB  XY
Prove:  ABC   XYZ
Method: ASA
 √
State the third congruence that
must be given to prove triangles
congruent.
Given: C  Z BC  YZ
Prove:  ABC   XYZ
Method: AAS
 √
State the third congruence that
must be given to prove triangles
congruent.
Given: D M F O
Prove:  DEF   MNO
Method: ASA
 √
Shortcuts
 √
Name the congruence
method or none
 √
Name the congruence
method or none
 √
Name the congruence
method or none
 √
Name the congruence
method or none
 √
Name the congruence
method or none
VY  WX
XV  YW
VXY   WYX
V
X
Z
W
U
Y
 √
Name the congruence
method or none
VZ  ZW
V BISECTS XZ
W BISECTS ZY
ZVY  ZWX
Z
V
X
W
U
Y
 √
Name the congruence
method or none
M
N
O
P
Q
 MOQ   PNQ
 √
How’s Your Memory?
 √
If two angles form a linear pair
 √
If two lines are perpendicular
then their slopes
 √
The acute angles of a right
triangle
 √
If two angles of a triangle are
congruent
 √
If two sides of two adjacent acute
angles are perpendicular
 √
If two angles are supplementary
to the same angle
 √
If there is a line and a point not
on the line
 √