Dilations and Similarities
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which transformations turn triangle ABC into A'B'C'?
dilation of 2
dilation of ½
Tags
CCSS.HSG.SRT.A.2
CCSS.8.G.A.4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?
A'(9,9) B'(18,18) C'(27,9)
A'(6,6) B'(9,9) C'(12,6)
A'(0,0) B'(3,3) C'(6,0)
A'(1,1) B'(2,2) C'(3,1)
Tags
CCSS.8.G.A.3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Choose the correct scale factor:
2
3
1/3
1/2
Tags
CCSS.HSG.CO.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The point (8, 12) was dilated to become point (2, 3). What was the scale factor?
½
¼
4
2
Tags
CCSS.8.G.A.3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the statements is true about the graphed triangles?
They are similar, because one can be obtained by dilating the other about the origin with a scale factor of 2.
They are similar, because one can be obtained by dilating the other about the origin with a scale factor of 1/2.
They are not similar, because one can be obtained by dilating the other about the origin with a scale factor of 2.
They are not similar, because one can be obtained by dilating the other about the origin with a scale factor of 1/2.
Tags
CCSS.HSG.SRT.A.2
CCSS.8.G.A.4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Even though the size of the image changed, which statement below explains why this is NOT an example of a dilation? (NOT similar figures)
the width increased in size, but the height did not change at all (they must change the same way)
the width of the image got larger, not smaller
this is a dilation actually, because the image increased 3 times the original size
these are not a dilation, because the two images are congruent
Tags
CCSS.HSG.SRT.A.2
CCSS.8.G.A.4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a dilation or a sequence of rigid motions and dilations
center of dilation
reflection
similarity transformation
rigid motion
Tags
CCSS.HSG.SRT.A.2
CCSS.8.G.A.4
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