gse geometry unit 1 & unit 2 name: review date:...

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GSE Geometry Unit 1 & Unit 2 Name: ________________________ Review Date: _______ Pd: ___ Use the following figure for question 1. 1. Describe the transformation. A) translation 6 units down B) translation 2 units down C) reflection across the xโ€“axis D) reflection across the yโ€“axis Use the following figure for question 2. 2. Triangle ABC is reflected across the xโ€“axis, and then across the yโ€“axis. Which rotation is equivalent to this composition of transformations? A) 45 degree rotation B) 90 degree rotation C) 180 degree rotation D) 360 degree rotation Use the following figure for question 3. 3. If Kite ABCD is reflected across the xโ€“axis, what are the resulting coordinates of point A? A) (1, โ€“3) B) (โ€“3, 1) C) (3, โ€“1) D) (โ€“3, โ€“1) Find the coordinates of the vertices given the translation. 4. (x, y) (x + 2, y โ€“ 3) A(โ€“4, โ€“2), B(โ€“4, โ€“4), C(โ€“2, โ€“4) A) Aโ€™(โ€“6, 1), Bโ€™ (โ€“6, โ€“1) Cโ€™ (โ€“4, โ€“1) B) Aโ€™(โ€“6, 0), Bโ€™ (6, โ€“1) Cโ€™ (4, โ€“1) C) Aโ€™(โ€“2, โ€“5), Bโ€™ (โ€“2, โ€“7), Cโ€™ (0, โ€“7) D) Aโ€™(2, 5), Bโ€™ (2, 7), Cโ€™ (0, 7) 5. (x, y) (x โ€“ 3, y + 1) A(4, 3), B(1, 3), C(3, 1) A) Aโ€™ (7, 2) Bโ€™ (4, 2) Cโ€™ (6, 0) B) Aโ€™ (7, โ€“2) Bโ€™ (โ€“4, 2) Cโ€™ (โ€“6, 0) C) Aโ€™ (โ€“1,โ€“ 4) Bโ€™ (2, โ€“4) Cโ€™ (0, โ€“2) D) Aโ€™ (1, 4) Bโ€™ (โ€“2, 4) Cโ€™ (0, 2)

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GSE Geometry Unit 1 & Unit 2 Name: ________________________

Review Date: _______ Pd: ___

_

Use the following figure for question 1.

1. Describe the transformation.

A) translation 6 units down

B) translation 2 units down

C) reflection across the xโ€“axis

D) reflection across the yโ€“axis

Use the following figure for question 2.

2. Triangle ABC is reflected across the xโ€“axis,

and then across the yโ€“axis. Which rotation

is equivalent to this composition of

transformations?

A) 45 degree rotation

B) 90 degree rotation

C) 180 degree rotation

D) 360 degree rotation

Use the following figure for question 3.

3. If Kite ABCD is reflected across the xโ€“axis,

what are the resulting coordinates of point

A?

A) (1, โ€“3)

B) (โ€“3, 1)

C) (3, โ€“1)

D) (โ€“3, โ€“1)

Find the coordinates of the vertices given the

translation.

4. (x, y) (x + 2, y โ€“ 3)

A(โ€“4, โ€“2), B(โ€“4, โ€“4), C(โ€“2, โ€“4)

A) Aโ€™(โ€“6, 1), Bโ€™ (โ€“6, โ€“1) Cโ€™ (โ€“4, โ€“1)

B) Aโ€™(โ€“6, 0), Bโ€™ (6, โ€“1) Cโ€™ (4, โ€“1)

C) Aโ€™(โ€“2, โ€“5), Bโ€™ (โ€“2, โ€“7), Cโ€™ (0, โ€“7)

D) Aโ€™(2, 5), Bโ€™ (2, 7), Cโ€™ (0, 7)

5. (x, y) (x โ€“ 3, y + 1)

A(4, 3), B(1, 3), C(3, 1)

A) Aโ€™ (7, 2) Bโ€™ (4, 2) Cโ€™ (6, 0)

B) Aโ€™ (7, โ€“2) Bโ€™ (โ€“4, 2) Cโ€™ (โ€“6, 0)

C) Aโ€™ (โ€“1,โ€“ 4) Bโ€™ (2, โ€“4) Cโ€™ (0, โ€“2)

D) Aโ€™ (1, 4) Bโ€™ (โ€“2, 4) Cโ€™ (0, 2)

2

Use the following figure for question 6.

6. Which triangle would be congruent to the

original using a reflection over the xโ€“axis

and the yโ€“axis?

A)

B)

C)

D)

Use the following figure for question 7.

7. Which type of transformation is shown

here?

A) dilation

B) reflection

C) rotation

D) translation

Use the following figure for question 8.

8. You are given rectangle ABCD on the grid

shown and are told that the figure is

reflected, but you are not told over which

axis this has occurred. Which COULD be

the new coordinates of point D?

A) (4, โ€“4)

B) (โ€“6, โ€“4)

C) (โ€“2, โ€“2)

D) (โ€“1, โ€“4)

3

Use the following figure for question 9.

9. The figure is transformed as shown in the

diagram. Describe the transformation.

A) dilation, then reflection

B) reflection, then rotation

C) rotation, then translation

D) translation, then reflection

Find the coordinates of the vertices given the

rotation.

10. 90ยฐ Counterclockwise Rotation about the

Origin

A (3, 2), B (5, 0), C (2, โ€“3), D (0, โ€“1)

A) Aโ€™ (2, 3) Bโ€™ (0, 5), Cโ€™ (โ€“3, 2), Dโ€™ (โ€“1, 0)

B) Aโ€™ (โ€“2, โ€“3) Bโ€™ (0, โ€“5), Cโ€™ (โ€“3, โ€“2), Dโ€™ (โ€“1, 0)

C) Aโ€™ (โ€“2, 3) Bโ€™ (0, 5), Cโ€™ (3, 2), Dโ€™ (1, 0)

D) Aโ€™ (3, โ€“2) Bโ€™ (5, 0), Cโ€™ (2, 3), Dโ€™ (0, 1)

11. 180ยฐ Rotation about the Origin

A (3, 2), B (5, 0), C (2, โ€“3), D (0, โ€“1)

A) Aโ€™ (3, 2), Bโ€™ (5, 0), Cโ€™ (2, โ€“3), Dโ€™ (0, โ€“1)

B) Aโ€™ (โ€“3, โ€“2), Bโ€™ (โ€“5, 0), Cโ€™ (โ€“2, โ€“3), Dโ€™ (0, โ€“1)

C) Aโ€™ (3, 2), Bโ€™ (5, 0), Cโ€™ (2, 3), Dโ€™ (0, 1)

D) Aโ€™ (โ€“3, โ€“2), Bโ€™ (โ€“5, 0), Cโ€™ (โ€“2, 3), Dโ€™ (0, 1)

Use the following figure for question 12.

12. The transformation of triangle ABC is an

example of what?

A) Translation of (0, โ€“8)

B) Translation of (0, 8)

C) A reflection across the yโ€“axis

D) A reflection across the xโ€“axis

13. A triangle in the coordinate plane has

coordinates of (2,3), (โ€“4,โ€“5), and (โ€“2, 4). It is

reflected about the yโ€“axis. What are its new

coordinates?

A) (โ€“2,3), (4,โ€“5), (2,4)

B) (โ€“2,โ€“3), (4,5), (2,โ€“4)

C) (2,โ€“3), (โ€“4,5), (โ€“2,โ€“4)

D) (โ€“2,โ€“3), (โ€“4,โ€“5), (โ€“2,โ€“4)

14. 270ยฐ Counterclockwise Rotation about the

Origin

A(3, 2) B(5, 0) C(2, โ€“3)D (0, โ€“1)

A) Aโ€™ (3, 2), Bโ€™ (5, 0), Cโ€™ (2, โ€“3), Dโ€™ (0, โ€“1)

B) Aโ€™ (2, โ€“3), Bโ€™ (0, โ€“5), Cโ€™ (โ€“3, โ€“2),Dโ€™ (โ€“1, 0)

C) Aโ€™ (โ€“2, โ€“3), Bโ€™ (0, โ€“5),Cโ€™ (โ€“2, โ€“2),Dโ€™ (โ€“1, 0)

D) Aโ€™ (2, โ€“3), Bโ€™ (0, 5), Cโ€™ (โ€“3, 2), Dโ€™ (1, 0)

4

15. Identify the transformation(s) that will map the image onto itself.

A) Reflect across the xโ€“axis B) Reflect across the line y = 2 C) Reflect across the line x = 2 D) Reflect across the yโ€“axis

16. Identify the line of symmetry that the figure is reflected over and label the image.

Use the following figure for question 17.

17. The triangle is transformed as shown in the

diagram. Describe the transformation.

A) dilation, then reflection

B) rotation, then reflection

C) reflection, then rotation

D) translation, then reflection

Use the following figure for question 18.

18. Which transformation will move polygon

ABCD completely into one quadrant?

A) up 5 units

B) left three units

C) reflect over the xโ€“axis

D) reflect over the yโ€“axis

Line of Symmetry: _________

A B

C

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19. As shown in the diagram, lines ๐‘š and ๐‘› are cut by transversal ๐‘. If ๐‘šโˆ 1 = 4๐‘ฅ + 14 and ๐‘šโˆ 2 = 8๐‘ฅ +

10, lines and are parallel when ๐‘ฅ equals.

A) 1

B) 13

C) 6

D) 17

20. In the diagram, line ๐‘ intersects lines ๐‘š and ๐‘›. If ๐‘šโˆ 1 = 7๐‘ฅ

and ๐‘šโˆ 2 = 5๐‘ฅ + 30, lines ๐‘š and ๐‘› are parallel when ๐‘ฅ equals

A) 12.5

B) 105

C) 87.5

D) 15

21. Lines ๐‘ and ๐‘ž are intersected by line ๐‘Ÿ, as shown. If ๐‘šโˆ 1 =

7๐‘ฅ โˆ’ 36 and ๐‘šโˆ 2 = 5๐‘ฅ + 12 , for which value of x

would ๐‘ โˆฅ ๐‘ž ?

A) 97

B) 24

C) 83

D) 17

22. If โˆ†๐ฝ๐พ๐ฟ โ‰… โˆ†๐‘€๐‘๐‘‚, which statement is always true?

A) โˆ ๐พ๐ฝ๐ฟ โ‰… โˆ ๐‘€๐‘‚๐‘

B) ๐ฝ๏ฟฝฬ…๏ฟฝ โ‰… ๐‘€๐‘‚ฬ…ฬ… ฬ…ฬ… ฬ…

C) โˆ ๐พ๐ฟ๐ฝ โ‰… โˆ ๐‘๐‘€๐‘‚

D) ๐ฝ๐พฬ…ฬ… ฬ… โ‰… ๐‘‚๐‘ฬ…ฬ… ฬ…ฬ…

6

23. Based on the diagram, which statement is true?

A) ๐‘Ž โˆฅ ๐‘

B) ๐‘Ž โˆฅ ๐‘

C) ๐‘‘ โˆฅ ๐‘’

D) ๐‘ โˆฅ ๐‘

24. Give the reason for the last statement in the proof.

Statement Reason

1 and 2 are a linear pair Given

1 and 2 are supplementary ?

A) Congruent Supplements Theorem

B) Congruent Complements Theorem

C) Vertical Angles Congruence Theorem

D) Linear Pair Postulate

25. In the figure shown below, ๐‘Š๐‘‹ฬ…ฬ… ฬ…ฬ… ฬ… โ‰… ๐‘Œ๐‘ฬ…ฬ…ฬ…ฬ… . What is the length of ๐‘‹๐‘ฬ…ฬ… ฬ…ฬ… ?

A) 25 B) 34 C) 59 D) 60 E) 84

X W Y Z 3๐‘ฅ โˆ’ 8 2๐‘ฅ + 3 4๐‘ฅ + 15

7

26. Which of the choices shown could be used to prove that โˆ†๐ด๐ต๐‘ƒ โ‰… โˆ†๐ถ๐ต๐‘ƒ?

A) SAS

B) HL

C) CPCTC

D) SSA

27. Use the diagram to determine which congruence is correct to prove โˆ†๐‘‹๐‘Œ๐‘ โ‰… โˆ†๐ฝ๐พ๐ฟ?

A) โˆ ๐‘Œ โ‰… โˆ ๐พ by SAS Congruence Postulate

B) ๐‘‹๐‘Œฬ…ฬ… ฬ…ฬ… โ‰… ๐ฝ๐พฬ…ฬ… ฬ… by SAS Congruence Postulate

C) ๐‘๐‘Œฬ…ฬ…ฬ…ฬ… โ‰… ๐ฟ๐พฬ…ฬ… ฬ…ฬ… by SAS Congruence Postulate

D) A and B

E) B and C

28. What is the third congruence needed to prove โˆ†๐ด๐ต๐ท โ‰… โˆ†๐ถ๐ต๐ท by AAS?

A) ๐ด๐ตฬ…ฬ… ฬ…ฬ… โ‰… ๐ต๐ถฬ…ฬ… ฬ…ฬ…

B) โˆ ๐ท๐ต๐ด โ‰… โˆ ๐ถ๐ท๐ต

C) ๐ด๐ทฬ…ฬ… ฬ…ฬ… โ‰… ๐ท๐ถฬ…ฬ… ฬ…ฬ…

D) โˆ ๐ด๐ต๐ท โ‰… โˆ ๐ถ๐ต๐ท

E) B or C

29. If โˆ†๐ฝ๐พ๐ฟ โ‰… โˆ†๐‘€๐‘๐‘‚, which statement is always true?

A) โˆ ๐พ๐ฝ๐ฟ โ‰… โˆ ๐‘€๐‘‚๐‘

B) โˆ ๐พ๐ฟ๐ฝ โ‰… โˆ ๐‘๐‘€๐‘‚

C) ๐ฝ๐พฬ…ฬ… ฬ… โ‰… ๐‘‚๐‘ฬ…ฬ… ฬ…ฬ…

D) ๐ฝ๏ฟฝฬ…๏ฟฝ โ‰… ๐‘€๐‘‚ฬ…ฬ… ฬ…ฬ… ฬ…

B

C A P

8

30. In the diagram, ๐ด๐ถฬ…ฬ… ฬ…ฬ… bisects โˆ ๐ต๐ด๐ท and โˆ ๐ต โ‰… โˆ ๐ท. Which method

could be used to prove โˆ†๐ด๐ต๐ถ โ‰… โˆ†๐ด๐ท๐ถ?

A) AAS B) SSS C) AAA D) SAS

31. Given โˆ†๐ด๐ต๐ท, ๐ต๐ถฬ…ฬ… ฬ…ฬ… is the perpendicular bisector of ๐ด๐ทฬ…ฬ… ฬ…ฬ… . Which statement Can NOT always be proven?

A) โˆ†๐ด๐ต๐ถ โ‰… โˆ†๐ท๐ต๐ถ

B) ๐ด๐ถฬ…ฬ… ฬ…ฬ… โ‰… ๐ท๐ถฬ…ฬ… ฬ…ฬ…

C) ๐ต๐ถฬ…ฬ… ฬ…ฬ… โ‰… ๐ถ๐ทฬ…ฬ… ฬ…ฬ…

D) โˆ ๐ด๐ถ๐ต โ‰… โˆ ๐ท๐ถ๐ต

32. Which set of congruence statements shows that โˆ†๐‘ƒ๐‘†๐ถ โ‰… โˆ†๐‘…๐บ๐‘€ by the SAS Congruence Theorem in the

reflection below?

A) ๐‘ƒ๐‘†ฬ…ฬ…ฬ…ฬ… โ‰… ๐‘…๐บฬ…ฬ… ฬ…ฬ… ; ๐‘ƒ๐ถฬ…ฬ… ฬ…ฬ… โ‰… ๐‘…๐‘€ฬ…ฬ…ฬ…ฬ…ฬ… ; โˆ ๐‘†๐‘ƒ๐ถ โ‰… โˆ ๐บ๐‘…๐‘€

B) ๐‘ƒ๐‘†ฬ…ฬ…ฬ…ฬ… โ‰… ๐‘…๐บฬ…ฬ… ฬ…ฬ… ; ๐‘†๐ถฬ…ฬ…ฬ…ฬ… โ‰… ๐บ๐‘€ฬ…ฬ…ฬ…ฬ…ฬ… ; โˆ ๐‘†๐ถ๐‘ƒ โ‰… โˆ ๐บ๐‘€๐‘…

C) ๐‘ƒ๐ถฬ…ฬ…ฬ…ฬ… โ‰… ๐‘…๐‘€ฬ…ฬ…ฬ…ฬ…ฬ… ; ๐ถ๐‘†ฬ…ฬ…ฬ…ฬ… โ‰… ๐‘€๐บฬ…ฬ… ฬ…ฬ…ฬ… ; โˆ ๐‘†๐‘ƒ๐ถ โ‰… โˆ ๐บ๐‘…๐‘€

D) ๐‘ƒ๐ถฬ…ฬ…ฬ…ฬ… โ‰… ๐‘…๐‘€ฬ…ฬ…ฬ…ฬ…ฬ… ; ๐‘ƒ๐‘†ฬ…ฬ…ฬ…ฬ… โ‰… ๐‘…๐บฬ…ฬ… ฬ…ฬ… ; โˆ ๐‘ƒ๐ถ๐‘† โ‰… โˆ ๐‘…๐‘€๐บ

33. In the diagram four pairs of triangles are shown.

Congruent corresponding parts are labeled in each pair.

Using ONLY the information given in the diagrams, which

pair of triangles can NOT be proven congruent?

A) Pair A

B) Pair B

C) Pair C

D) Pair D

9

34. In scalene triangle ๐ด๐ต๐ถ, ๐‘šโˆ ๐ต = 45ยฐ and ๐‘šโˆ ๐ถ = 55ยฐ. What is the order of the sides in length, from

longest to shortest?

A) ๐ด๐ตฬ…ฬ… ฬ…ฬ… , ๐ต๐ถฬ…ฬ… ฬ…ฬ… , ๐ด๐ถฬ…ฬ… ฬ…ฬ…

B) ๐ต๐ถฬ…ฬ… ฬ…ฬ… , ๐ด๐ถฬ…ฬ… ฬ…ฬ… , ๐ด๐ตฬ…ฬ… ฬ…ฬ…

C) ๐ด๐ถฬ…ฬ… ฬ…ฬ… , ๐ต๐ถฬ…ฬ… ฬ…ฬ…ฬ…, ๐ด๐ตฬ…ฬ… ฬ…ฬ…

D) ๐ต๐ถฬ…ฬ… ฬ…ฬ… , ๐ด๐ตฬ…ฬ… ฬ…ฬ… , ๐ด๐ถฬ…ฬ… ฬ…ฬ…

35. In the diagram, ๐‘€๐ด๐‘‡๐ป is a rhombus with diagonals ๐ด๐ปฬ…ฬ… ฬ…ฬ… and ๐‘€๐‘‡ฬ…ฬ…ฬ…ฬ…ฬ…. If

๐‘šโˆ ๐ป๐ด๐‘€ = 12ยฐ, what is ๐‘šโˆ ๐ด๐‘€๐‘‡?

A) 12ยฐ

B) 78ยฐ

C) 84ยฐ

D) 156ยฐ

36. In the proof shown here about equilateral triangle โˆ†๐‘‹๐‘Œ๐‘, what is the correct reason that can be used for

Step 2 and Step 3?

Given: ๐‘‹๐‘Œฬ…ฬ… ฬ…ฬ… โ‰… ๐‘Œ๐‘ฬ…ฬ…ฬ…ฬ… โ‰… ๐‘‹๐‘ฬ…ฬ… ฬ…ฬ…

Prove: โˆ ๐‘‹ โ‰… โˆ ๐‘Œ โ‰… โˆ ๐‘

A) The sum of the interior angles in a triangle is 180ยฐ.

B) If two sides of a triangle are congruent, then the angles opposite the sides are congruent.

C) If two angles of a triangle are congruent, then the sides opposite the angles are congruent.

D) SSS congruence criterion

37. In the diagram, โˆ†๐ฟ๐‘€๐‘‚ is isosceles with ๐ฟ๐‘‚ = ๐‘€๐‘‚. If ๐‘šโˆ ๐ฟ =

55ยฐ and ๐‘šโˆ ๐‘๐‘‚๐‘€ = 28ยฐ, what is ๐‘šโˆ ๐‘?

A) 27ยฐ

B) 28ยฐ

C) 42ยฐ

D) 70ยฐ

Statements Reasons

1. 1. Given

2. โˆ ๐‘‹ โ‰… โˆ ๐‘Œ 2.

3. โˆ ๐‘Œ โ‰… โˆ ๐‘ 3.

10

38. Given three distinct quadrilaterals, a square, a rectangle, and a rhombus, which quadrilaterals must

have perpendicular diagonals?

A) The rhombus, only

B) The rectangle and the square

C) The rhombus and the square

D) The rectangle, the rhombus, and the square

39. The lengths of two sides of a triangle are 3 inches and 8 inches. Find the range of possible lengths fo

r the third side, s.

A) 5 < ๐‘  < 8 B) 3 < ๐‘  < 11 C) 3 < ๐‘  < 8 D) 5 < ๐‘  < 11

40. In the diagram below, ๐ฟ๐ด๐‘‡๐ธ is an isosceles trapezoid with ๐ฟ๐ธฬ…ฬ…ฬ…ฬ… โ‰… ๐ด๐‘‡ฬ…ฬ… ฬ…ฬ… , ๐ฟ๐ด = 24, ๐ธ๐‘‡ = 40, and ๐ด๐‘‡ = 10.

Altitudes ๐ฟ๐นฬ…ฬ…ฬ…ฬ… and ๐ด๐บฬ…ฬ… ฬ…ฬ… are drawn. What is the length of ๐ฟ๐นฬ…ฬ…ฬ…ฬ… ?

A) 6

B) 8

C) 3

D) 4

41. What is the measure of the vertex angle of an isosceles triangle if one of its base

angles measures 42ยฐ?

A) 138ยฐ B) 69ยฐ C) 96ยฐ D) 84ยฐ

42. In the diagram of โˆ†๐ด๐ถ๐‘‡, ๐ท is the midpoint of ๐ด๐ถฬ…ฬ… ฬ…ฬ… , ๐‘‚ is the midpoint of ๐ด๐‘‡ฬ…ฬ… ฬ…ฬ… , and ๐บ is the midpoint of ๐ถ๐‘‡ฬ…ฬ…ฬ…ฬ… .

If ๐ด๐ถ = 10, ๐ด๐‘‡ = 18, and ๐ถ๐‘‡ = 22, what is the perimeter of parallelogram ๐ถ๐ท๐‘‚๐บ?

A) 21

B) 25

C) 32

D) 40

๐‘ช

๐‘จ

๐‘ซ

๐‘ป

๐‘ถ

๐‘ฎ

11

18

x

5

12

43. As shown in the diagram of โˆ†๐ด๐ถ๐ท, ๐ต is a point on ๐ด๐ถฬ…ฬ… ฬ…ฬ… and ๐ท๐ตฬ…ฬ… ฬ…ฬ… is drawn. If ๐‘šโˆ ๐ด = 66ยฐ, ๐‘šโˆ ๐ถ๐ท๐ต =

18ยฐ, and ๐‘šโˆ ๐ถ = 24ยฐ, what it the longest side of โˆ†๐ด๐ต๐ท?

A) ๐ด๐ตฬ…ฬ… ฬ…ฬ…

B) ๐ท๐ถฬ…ฬ… ฬ…ฬ…

C) ๐ด๐ทฬ…ฬ… ฬ…ฬ…

D) ๐ต๐ทฬ…ฬ… ฬ…ฬ…

44. In โˆ†๐ท๐ธ๐น, ๐‘€โˆ ๐ท = (3๐‘ฅ + 5)ยฐ, ๐‘šโˆ ๐ธ = (4๐‘ฅ โˆ’ 15)ยฐ, and ๐‘šโˆ ๐น = (2๐‘ฅ + 10)ยฐ. Which statement is true?

A) ๐ท๐น = ๐น๐ธ

B) ๐ท๐ธ = ๐น๐ธ

C) ๐‘šโˆ ๐ธ = ๐‘šโˆ ๐น

D) ๐‘šโˆ ๐ท = ๐‘šโˆ ๐น

45. Two sides of an equilateral triangle have lengths 2๐‘ฅ โˆ’ 2 and 3๐‘ฅ โˆ’ 6 . Which of 10 โˆ’ ๐‘ฅ or 6๐‘ฅ + 5

could be the length of the third side?

A) neither 10 โˆ’ ๐‘ฅ nor 6๐‘ฅ + 5

B) 10 โˆ’ ๐‘ฅ only

C) Both 10 โˆ’ ๐‘ฅ and 6๐‘ฅ + 5

D) 6๐‘ฅ + 5 only

47. In โˆ†๐ด๐ต๐ถ and โˆ†๐ท๐ธ๐น, ๐ด๐ถ

๐ท๐น=

๐ถ๐ต

๐น๐ธ. Which additional information would prove โˆ†๐ด๐ต๐ถ~โˆ†๐ท๐ธ๐น?

A) โˆ ๐ต๐ด๐ถ โ‰… โˆ ๐ธ๐ท๐น B) โˆ ๐ด๐ถ๐ต โ‰… โˆ ๐ท๐น๐ธ C) ๐ถ๐ต = ๐น๐ธ D) ๐ด๐ถ = ๐ท๐น

48. Solve for x.

A) ๐‘ฅ = 25.5 B) ๐‘ฅ = 11.3 C) ๐‘ฅ = 3.3 D) ๐‘ฅ = 7.5

12

49. In the figure below, ๐ท๐ธฬ…ฬ… ฬ…ฬ… โˆฅ ๐ด๐ถฬ…ฬ… ฬ…ฬ… , ๐ต๐ท = 4, ๐ท๐ด = 6 and ๐ธ๐ถ = 8. Find ๐ต๐ถ to the nearest tenth.

A) 4.3

B) 13.3

C) 5.3

D) 8.2

50. As shown in the diagram, โˆ†๐ด๐ต๐ถ~โˆ†๐ท๐ธ๐น, ๐ด๐ต = 7๐‘ฅ, ๐ต๐ถ = 4, ๐ท๐ธ = 7, and ๐ธ๐น = ๐‘ฅ. What is the length

of ๐ด๐ตฬ…ฬ… ฬ…ฬ… ?

A) 4

B) 28

C) 2

D) 14

51. When โˆ†๐ด๐ต๐ถ is dilated by a scale factor of 2, its image is โˆ†๐ดโ€ฒ๐ตโ€ฒ๐ถโ€ฒ. Which statement is true?

A) โˆ ๐ด โ‰… โˆ ๐ดโ€™

B) ๐ด๐ถฬ…ฬ… ฬ…ฬ… โ‰… ๐ดโ€ฒ๐ถโ€ฒฬ…ฬ… ฬ…ฬ… ฬ…

C) 2(area of โˆ†๐ด๐ต๐ถ ) = area of โˆ†๐ดโ€ฒ๐ตโ€ฒ๐ถโ€ฒ

D) Perimeter of โˆ†๐ด๐ต๐ถ = perimeter of โˆ†๐ดโ€ฒ๐ตโ€ฒ๐ถโ€ฒ

52. โˆ†๐‘๐‘‚๐‘ƒ has side lengths 5 cm, 7 cm, and 9 cm. If โˆ†๐‘๐‘‚๐‘ƒ~โˆ†๐‘…๐‘†๐‘‡, which of the following could be the

lengths of the sides of โˆ†๐‘…๐‘†๐‘‡ ?

A) 15 cm, 17 cm, and 19 cm

B) 1 cm, 3 cm, 5cm

C) 6 cm, 8.4 cm, and 13.5 cm

D) 7.5 cm, 10.5 cm, 13.5 cm

A C

E

B

D

13

53. The triangles formed by two ladders leaning against a wall are

similar. How long is the shorter ladder?

A) 10 ft.

B) 6 ft.

C) 14 ft.

D) 28 ft.

54. In triangles โˆ†๐ด๐ต๐ถ and โˆ†๐ท๐ธ๐น, ๐ด๐ต = 4, ๐ด๐ถ = 5, ๐ท๐ธ = 8, ๐ท๐น = 10, and โˆ ๐ด โ‰… โˆ ๐ท. Which method

could be used to prove โˆ†๐ด๐ต๐ถ~โˆ†๐ท๐ธ๐น?

A) ASA B) AA C) SAS D) SSS

55. ๐ด๐ต๐ถ๐ท๐ธ๐น~๐‘…๐‘†๐‘‡๐‘ˆ๐‘‰๐‘„. Find ๐‘ฅ.

A) 12 in.

B) 2.25 in.

C) 6.75 in.

D) 10 in.

56. If โˆ†๐‘„๐‘…๐‘† is dilated by a scale factor of 1

5 about the origin, which of the following points represents the

coordinates of ๐‘…โ€ฒ?

A) (โˆ’2

5,

1

5)

B) (โˆ’10, 5)

C) (1

5, โˆ’

2

5)

D) (โˆ’5, 10)

14

57. In the figure, โˆ†๐ด๐ต๐ถ~โˆ†๐ดโ€™๐ตโ€™๐ถโ€™. Which statement is true of the

transformation from โˆ†๐ด๐ต๐ถ~โˆ†๐ดโ€™๐ตโ€™๐ถโ€™?

A) The measures of all corresponding angles change by

a scale factor of 1

2.

B) The measures of all corresponding angles change by

a scale factor of 2.

C) The lengths of all corresponding sides change by a

scale factor of 1

2.

D) The lengths of all corresponding sides change by a

scale factor of 2.

58. โˆ†๐ด๐ต๐ถ has vertices ๐ด(1, โˆ’4), ๐ต(โˆ’2, 6) and ๐ถ(5, 2). What are the vertices of the image after a dilation

with a scale factor of 2.5 using the origin as the center of dilation?

A) ๐ดโ€ฒ(2.5, โˆ’10), ๐ตโ€ฒ(โˆ’5, 15), ๐ถโ€ฒ(โˆ’12.5, 5)

B) ๐ดโ€ฒ(โˆ’2.5, 10), ๐ตโ€ฒ(5, โˆ’15), ๐ถโ€ฒ(โˆ’12.5, โˆ’5)

C) ๐ดโ€ฒ(2.5, โˆ’10), ๐ตโ€ฒ(โˆ’5, 15), ๐ถโ€ฒ(12.5, 5)

D) ๐ดโ€ฒ(2.5, โˆ’10), ๐ตโ€ฒ(5, 15), ๐ถโ€ฒ(13, 5)

59. In the diagram, โˆ†๐ด๐ต๐ถ~โˆ†๐‘…๐‘†๐‘‡. Which statement is NOT true?

A) ๐ด๐ต+๐ต๐ถ+๐ด๐ถ

๐‘…๐‘†+๐‘†๐‘‡+๐‘…๐‘‡=

๐ด๐ต

๐‘…๐‘†

B) โˆ ๐ด โ‰… โˆ ๐‘…

C) ๐ด๐ต

๐‘…๐‘†=

๐ต๐ถ

๐‘†๐‘‡

D) ๐ด๐ต

๐ต๐ถ=

๐‘†๐‘‡

๐‘…๐‘†

60. In the triangles shown, โˆ†๐ด๐ต๐ถ is dilated by a factor of 2

3 to form โˆ†๐‘‹๐‘Œ๐‘.

Given that ๐‘šโˆ ๐ด = 50ยฐ and ๐‘šโˆ ๐ต = 100ยฐ, what is ๐‘šโˆ ๐‘ยฐ?

A) 30ยฐ

B) 15ยฐ

C) 25ยฐ

D) 50ยฐ