AnswersCommon Core Math 8 - MA3108 B-ICSimilarity and Transformations

Similarity and Transformations Answers

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3

Find x and y. x = y =

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Part 1:2.5
Part 2:5
4

Which sequence of transformations creates triangles that are similar instead of congruent?

A
reflection and rotation
B
translation and reflection
C
rotation and translation
D
dilation and reflection
5

What was the transformation after the dilation?

A
rotation 90° counterclockwise
B
translation down 9 units
C
reflection over the x-axis
D
reflection over the y-axis
6

Identify the transformation after the dilation.

A
rotation 90° counterclockwise
B
rotation 180° counterclockwise
C
translation up 3 units
D
translation right 3 units
7

Determine all the transformations needed to transform the pre-image, A, to the image, A'. Select all that apply.

A
dilation by a scale factor of 1/2
B
dilation by a scale factor of 1/3
C
reflection over the x-axis
D
translation to the left 4 units
E
translation down 3 units
9

Who is correct?

A
Only Jasmine is correct.
B
Only Terrence is correct.
C
Both can be correct.
D
Neither is correct.
10

Measure the sides and angles of the two triangles.Are the two triangles similar?

A
Yes, corresponding angles are congruent.
B
Yes, all sides have been increased by 1 unit.
C
Yes, corresponding sides are proportional.
D
No, corresponding angles are not congruent and corresponding sides are not proportional.

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