Geometry CP – Ch 4 Test A Student
Geometry CP – Problem Set 4 Student _________________
Congruent Triangles
Use a cover sheet to cover your work. Put your final
answers in the blanks provided. Use correct symbols.
Classify the triangle by its angles AND by its sides.
Write a capital letter in each blank.
A) acute B) equilateral C) isosceles
D) obtuse E) right F) scalene
1. 2. 3.
4. 5. 6.
Given that [pic]ABC[pic][pic]RST, complete the following.
7.[pic]C [pic] ____ 8.[pic]A[pic] ____ 9.[pic][pic] ____ 10.[pic][pic] ____
In the diagram at the right, [pic]GFH [pic][pic]MLN.
11. Find MN.
12. Find GF.
13. Find m[pic]N.
14. Find m[pic]G.
Use the diagram at the right to complete the congruence statements for the given triangles.
15. [pic]C [pic] ____
16. DB[pic] ____
17. [pic]CBD[pic] ____
Find x.
18. 19.
20. 21.
Mark the given information on the triangles. What additional
information would you need to use the Congruence Postulate or
Theorem given to show [pic]ABC [pic][pic]XYZ ?
22. [pic], [pic] 23. [pic], [pic]A [pic][pic]X
SSS Congruence SAS Congruence
24. [pic]C [pic][pic]Z , [pic] 25. [pic]B [pic][pic]Y , [pic]
AAS Congruence ASA Congruence
Find x.
26. 27. 28.
29. 30.
Decide whether it is possible to prove that the triangles are congruent. If it is not possible with the given information, circle “not possible.” If it is possible, tell which congruence postulate or theorem you would use.
33. 34.
35. 36.
37. 38.
Complete the proof.
39. Given: WX || ZY , WZ || XY
Prove: (WXZ ( (YZX
|Statements |Reasons |
|1) WX || ZY , WZ || XY |1) Given |
|2) |2) |
|3) |3) |
|4) (WXZ ( (YZX |4) |
40. Given: AC ( DE , (C ( (D
Prove: (ABC ( (EBD
|Statements |Reasons |
|1) AC ( DE , (C ( (D |1) Given |
|2) |2) |
|3) (ABC ( (EBD |3) |
41. Given:
Prove:
|Statements |Reasons |
|1) |1) Given |
|2) |2) |
|3) |3) |
|4) |4) |
42. Given: AD ( CB, AD ( AB , BC ( DC
Prove: (ABD ( (CDB
|Statements |Reasons |
|1) AD ( CB, AD ( AB , BC ( DC |1) Given |
|2) (1 and (6 are _______________ |2) |
|3) (ABD and (CDB are ____________ |3) |
|4) BD ( BD |4) |
|5) (ABD ( (CDB |5) |
|Statements |Reasons |
|1) E is the midpoint of BC |1) Given |
|E is the midpoint of AD | |
|2) BE ( EC , AE ( ED |2) |
|3) (AEB ( (DEC |3) |
|4) [pic]AEB [pic] [pic]DEC |4) |
| |5) |
|5) AB ( C D | |
43. Given: E is the midpoint of BC
E is the midpoint of AD
Prove: AB ( C D
-----------------------
1. _____ _____
2. _____ _____
3. _____ _____
4. _____ _____
5. _____ _____
6. _____ _____
7. _____ 8. _____
9. _____ 10. _____
11. _____ 12. _____
13. _____ 14. _____
15. _____ 16. _____
17. ____________
18. ____________
19. ____________
20. ____________
21. ____________
41°
110°
89°
A
B
C
x°
30°
40°
Z
Y
X
C
B
A
Z
Y
X
C
B
A
Z
Y
X
C
B
A
4
5
1
3
1
6
4
3
D
C
B
A
33. Not possible
[pic]MNR[pic][pic]______
by ______
34. Not possible
[pic]ABC [pic][pic]______
by ______
35. Not possible
[pic]ABD[pic][pic]______
by ______
36. Not possible
[pic]ABC[pic][pic]______
by ______
37. Not possible
[pic]BCD[pic][pic]______
by ______
38. Not possible
[pic]EDC [pic][pic]______
by ______
A
B
C
D
E
X
W
Z
Y
A
M
75°
B
C
D
N
P
R
A
B
D
E
C
C
E
D
B
A
Z
Y
22. ____________
23. ____________
24. ____________
25. ____________
26. ____________
27. ____________
28. ____________
29. ____________
30. ____________
X
x°
x°
x°
70°
50°
30°
30°
[pic]
5
[pic]
2
3
4
2
6
1
2
[pic]
[pic]
6
5
4
1
6
5
4
1
2
3
2
3
+
-
+ 5
................
................
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