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Congruence in Overlapping Triangles

Total questions: 14

Worksheet time: 14mins

Name
Class
Date
1.

Identify any common angles or sides for:

△ADC △BDC

a)

AB

b)

AC

c)

BD

d)

DC

2.

Identify any common angles or sides.

△EGH △EGF

a)

EH

b)

EF

c)

GH

d)

EG

3.

Identify any common angles or sides.

a)

∠M

b)

∠P

c)

∠K

d)

∠MLP

4.

Identify any common angles or sides.

△UXV and △VWU

a)

UX

b)

UW

c)

UV

d)

XV

5.

Name the side or angle that is overlapping.

a)

UX

b)

UV

c)

VW

d)

XW

6.

Write a congruence statement for the pair of triangles. Name the postulate or theorem that justifies your statement.

a)

△AWC ≅ △CRW by ASA.

b)

△AWC ≅ △RCW by AAS.

c)

△AWC ≅ △WCR by SAS.

d)

△AWC ≅ △RWC by ASA.

7.

Which postulate or theorem, if any, could you use to prove △DBE ≅ △FCE congruent? If not enough information is given, choose not enough information

a)

SAS

b)

AAS

c)

ASA

d)

not enough information

8.
a)

Equivalence

b)

Reflexive

c)

Symmetric

d)

Transitive

9.

Which postulate or theorem, if any, could you use to prove the two triangles congruent?

a)

ASA

b)

HL

c)

AAS

d)

SSA

10.

Which overlapping triangles are congruent by ASA?

a)

△ADC ≅ △EBC

b)

△ABE ≅ △CDA

c)

△ABE ≅ △DEA

d)

△ADC ≅ △EDA

11.

Name a pair of overlapping congruent triangles in the diagram. State whether the triangles are congruent by SSS, SAS, ASA, AAS, or HL.

a)

△FIH ≅ △GHI by HL.

b)

△FIH ≅ △GHI by SSS.

c)

△FIH ≅ △GHI by SAS.

d)

△FIH ≅ △HGI by SAS.

12.

Identify any common angles or sides

a)

JK‾\overline{JK}

b)

∠MJK\angle MJK

c)

LK‾\overline{LK}

d)

∠MKJ\angle MKJ

13.

The red (ΔKNM) and blue (ΔPLM) triangles are congruent. Identify a common side or angle.

a)

∠M\angle M

b)

∠P\angle P

c)

∠K\angle K

d)

∠MLP\angle MLP

14.
a)

Equivalence

b)

Reflexive

c)

Symmetric

d)

Transitive