Free Printable Congruent Triangles Practice

1.

Are the triangles congruent, if yes, why?

a)

SSS

b)

SAS

c)

ASA

d)

Not Congruent

2.

Are the triangles congruent, if yes, why?

a)

SAS

b)

ASA

c)

SSS

d)

Not Congruent

3.

What is the correct congruence statement? ΔLEU≅______

a)

ΔLGE

b)

ΔLEG

c)

ΔELG

d)

Not Congruent

4.

What is the correct congruence statement? ΔDEC ≅________

a)

ΔAEB

b)

ΔEAB

c)

ΔBEA

d)

Not Congruent

5.

Which of the following is not a valid reason to prove congruent triangles?

a)

SSA

b)

ASA

c)

SAS

d)

SSS

6.

a)

A

b)

B

c)

C

d)

D

7.

Name the postulate, if possible, that makes the triangles congruent.

a)

SSS

b)

SAS

c)

ASA

d)

Not Possible

8.

Name the postulate, if possible, that makes the triangles congruent.

a)

SSS

b)

SAS

c)

ASA

d)

AAS

9.

∆ABC≅∆XYZ
which is true?

a)

AB≅XY

b)

AB≅YX

c)

AB≅XZ

d)

BC≅CB

10.

These two triangles are congruent. If ∠C is 40^o find the measure of ∠F. Hint... be sure to find the measure of ∠F.

a)

40^o

b)

50^o

c)

90^o

d)

45^o

11.

This symbol means congruent

a)

≅

b)

≠

c)

∠

d)

Δ

12.

Given: $\Delta ABC\cong\Delta DEF$ Select ALL the true statements.

a)

$\angle C\cong\angle E$

b)

$CA\cong DF$

c)

$\angle E\cong\angle B$

d)

$BC\cong DF$

e)

$\angle A\cong\angle D$

13.

Find y.

a)

2

b)

3

c)

4

d)

5

14.

If ∆LMK ≅ ∆LMT, then
∠K ≅ ____

a)

T

b)

∠T

c)

∠M

d)

∠L

15.

If $\Delta EHG\cong\Delta KFC$ , which statement is true?

a)

$\overline{EH}\cong\overline{FK}$

b)

$\overline{HG}\ \cong\ \overline{KF}$

c)

$\overline{EG}\ \cong\ \overline{KC}$

d)

$\angle E\cong\angle C$

16.

What is the reason these triangles are congruent?

a)

SSS

b)

SAS

c)

ASA

d)

AAS

17.

Are these triangles congruent?

a)

Yes

b)

No

c)

Not enough informaiton

18.

These triangles are congruent. If ∠A is 48^o what is the measure of ∠F?

a)

48^o

b)

38^o

c)

84^o

d)

94^o

19.

What does SSS stand for?

a)

Small Small Small

b)

Side Side Side

c)

Small Side Small

d)

Sam's Silly Side

20.

Name the postulate, if possible, that makes the triangles congruent.

a)

SSS

b)

SAS

c)

AAS

d)

Not Possible

21.

Are the triangles congruent, if yes, why?

a)

SSS

b)

ASA

c)

AAA

d)

Not Congruent

22.

a)

Congruent by HL

b)

Congruent by SAS

c)

Congruent by SSS

d)

Not Necessarily Congruent

23.

State if the two triangles are congruent. If they are, state which theorem you would use.

a)

Yes, SAS

b)

Yes, SSS

c)

Yes, HL

d)

No

24.

∠A = ≅

a)

∠M

b)

∠N

c)

∠L

25.

Which is a correct congruence statement.

a)

A

b)

B

c)

C

d)

D

26.

Name the postulate, if possible, that makes the triangles congruent.

a)

SSS

b)

SAS

c)

ASA

d)

AAS

27.

All corresponding angles in congruent figures are congruent.

a)

True

b)

False

28.

What does x equal?

a)

9

b)

11

c)

17

29.

Which side of ΔYDW corresponds with side AC in ΔABC

a)

Side YW

b)

Side DW

c)

Side YD

30.

Determine the relationship of the figures.

a)

Congruent

b)

Not Congruent

c)

Similar

31.

Look at the sides of this triangle. What type of triangle is this?

a)

scalene

b)

acute

c)

equilateral

d)

isosceles

32.

In a ____________ triangle one angle is exactly 90 degrees.

a)

acute

b)

right

c)

obtuse

d)

360 degrees

33.

What is the value of x?

a)

51

b)

49

c)

78

34.

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.

a)

45°

b)

90°

c)

180°

d)

360°

35.

Find the measure of the missing angle.

a)

90^o

b)

10⁰

c)

130^o

d)

50^o

36.

How are these two triangles congruent?

a)

AAS

b)

ASA

c)

Not enough information

d)

SAS

Congruent Triangles Practice

Total questions: 36

Worksheet time: 36mins

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