Name:_______________________Period:___Date:______

Name:_______________________Period:___Date:______Triangle Congruence Practice Using CPCTC

3. Are ∆RST and ∆GHJ congruent?

(circle) Yes or No Justification: ________

If so, find <R, if <R = 3x-67 and <G = 13+x.

A

B

C

D

R

S

T

G

H

J

B

A

B

C D

E

A

B

C

D

E

F

4. Are ∆ABC and ∆DBC congruent?

(circle) Yes or No Justification: _______

If so, find m < ACB, if m <ACB = 4x-20 and m< DCB = 2x+10.

A

CD

5. Are ∆ABC and ∆DEC congruent?

(circle) Yes or No Justification: ________

If so, find the length of AB, if AB = 5x-35 and

DE = 25 -x.

6. Are ∆ABC and ∆DEF congruent?

(circle) Yes or No Justification: _______

If so, find AC, if AC = 10x+5 and DF = 7x+32.

x = ____

<R = ____ m ACB= _____

AC = _____AB = ____

1. What does CPCTC stand for?

C ______________________

P ______________________

C ______________________

T _______________________

C _______________________

2. Are ∆ABC and ∆DBC congruent?

(circle) Yes or No Justification: ________

If so, find x, if AB = 12x+4 and BD = 100.

7. Are ∆BEN and ∆AMY congruent?

(circle) Yes or No Justification: ________

If so, find EN if EN = 2x+3 and MY = 3x-2.

8. Are ∆ALS and ∆MOS congruent?

(circle) Yes or No Justification: ________

If so, find LS if LS = 3x-50 and OS = 2x-5

B

EN

A

MY

A L

MO

S

EN = ______ LS = ______