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Congruent Triangles - what's missing??

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

Identify the missing pair of congruent pieces needed to prove the triangles congruent using the named theorem.

a)

AC XZAC\ \cong\ XZ

b)

<C <Y<C\ \cong<Y

c)

BC YZBC\ \cong\ YZ

d)

<B <Y<B\ \cong\ <Y

2.

Identify the missing pair of congruent pieces needed to prove the triangles congruent using the named theorem.

a)

BC YZBC\ \cong\ YZ

b)

<C <Z<C\ \cong\ <Z

c)

AC XZAC\ \cong\ XZ

d)

AB XYAB\ \cong\ XY

3.

Identify the missing pair of congruent pieces needed to prove the triangles congruent using the named theorem.

a)

<A <X<A\ \cong\ <X

b)

<C <Z<C\ \cong\ <Z

c)

AC XZAC\ \cong\ XZ

d)

AB XYAB\ \cong\ XY

4.

Identify the missing pair of congruent pieces needed to prove the triangles congruent using the named theorem.

a)

<J <D<J\ \cong\ <D

b)

<R <F<R\ \cong\ <F

c)

<M <B<M\ \cong\ <B

d)

RM FBRM\ \cong FB

5.

Identify the missing pair of congruent pieces needed to prove the triangles congruent using the named theorem.

a)

<J <D<J\ \cong\ <D

b)

<R <F<R\ \cong\ <F

c)

<M <B<M\ \cong\ <B

d)

RM FBRM\ \cong FB

6.

Identify the missing pair of congruent pieces needed to prove the triangles congruent using the named theorem.

a)

<J <D<J\ \cong\ <D

b)

<R <F<R\ \cong\ <F

c)

<M <B<M\ \cong\ <B

d)

RM FBRM\ \cong FB

7.

Identify the missing pair of congruent pieces needed to prove the triangles congruent using the named theorem.

a)

<E <N<E\cong\ <N

b)

<F <O<F\ \cong\ <O

c)

DF MODF\cong\ MO

d)

EF NOEF\ \cong\ NO

8.

Identify the missing pair of congruent pieces needed to prove the triangles congruent using the named theorem.

a)

<E <N<E\cong\ <N

b)

<D <M<D\ \cong\ <M

c)

DF MODF\cong\ MO

d)

EF NOEF\ \cong\ NO

9.

Identify the missing pair of congruent pieces needed to prove the triangles congruent using the named theorem.

a)

<E <N<E\cong\ <N

b)

<D <M<D\ \cong\ <M

c)

DE MNDE\cong\ MN

d)

EF NOEF\ \cong\ NO

10.

Identify the missing pair of congruent pieces needed to prove the triangles congruent using HL theorem. MORE than one correct answer!

a)

<C & <K are right angles<C\ \&\ <K\ are\ \ right\ \ angles

b)

<1 & <2 are right angles<1\ \&\ <2\ are\ \ right\ \ angles

c)

<CEA & <KAE are right angles<CEA\ \&\ <KAE\ are\ \ right\ \ angles

d)

AC EKAC\ \cong\ EK