Practice Page
Directions: Grab a paper and pencil to draw diagrams. Read carefully.

1.
ΔABC congruent ΔDEF. The perimeter of ΔABC is 27 inches and DF = 7" and
FE = 8". Find DE.
Choose:
8"
9"
10"
12"
ctri5

 

 

2.
ΔMOP and ΔDEF are congruent scalene triangles, with ∠M congruent∠ D and ,∠P congruent∠F.
If MP = 12 inches, which side of ΔDEF has the same measure.
Choose:
EF
de
df
think1

 

 

3.
Given congruent triangles ΔBAT and ΔFOG, as shown at the right.
If m∠B + m∠A = 110º, what is the m∠G?

Choose:
65º
70º
80º
85º
2tri
Diagrams not drawn to scale.

 

 

4.
The two legs of a right triangle measure 6 and 8. The leg and hypotenuse of another right triangle measure 8 and 10 respectively. These two triangles are congruent.

Choose:
TRUE
FALSE
Cannot be determined
think21

 

 

5.
a) By observation of the diagram, which method can be used to verify that the triangles are congruent?
Assume straight lines from E to A and from D to B.

Choose:
SSS
SAS
ASA
AAS
triangle7
 
b) Find DE.
Choose:
15
30
45
60

 

 

6.
ΔABC congruent ΔDEF
segc
AB = 2x + 10
DE = 4x - 20
Find AB.

Choose:
15
30
40
50
tritri

 

 

7.
Which of the following cannot be used to verify that two triangles are congruent triangles?

Choose:
SSS
SAS
ASA
AAA
think3

 

 

8.
ΔABC congruent ΔDFE
m∠A = 2x + 10
m∠D = 3x - 40
Find m∠A.

Choose:
90º
50º
30º
15º
tri3

 

 

9.
ΔABC congruent ΔDEF
Which of the following is correct?

Choose:
91
92
03
94
thinkdog

 

 

10.
ΔABC congruent ΔDEF
m∠A = 75º
m∠E = 21º
Find m∠F.

Choose:
96º
84º
75º
70º
trianglepinkend



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