Practice Quiz for Unit 4 - Dilations and Similarity
Authored by Carrie Gribben
Mathematics
6th - 8th Grade
CCSS covered
Used 1+ times
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24 questions
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1.
FILL IN THE BLANKS QUESTION
2 mins • 1 pt
Figure D´E´F´G´ is a dilation with center (0, 0) of figure DEFG. What is the scale factor?
(a)
Tags
CCSS.8.G.A.3
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A sequence of transformations is required to map ΔPQR onto ΔP’Q’R’. Which is a possible step?
Reflection across the line x=1
Reflection across the y-axis
Reflection across the x-axis
Reflection across the line y=1
Tags
CCSS.8.G.A.3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Find the image of ΔABC after a dilation with center (0, 0) and a scale factor of 3. What is the ordered pair for A'?
(1, 1)
(3, 3)
(5, 5)
(6, 6)
Tags
CCSS.8.G.A.3
4.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Select ALL the true statements about an image after a dilation.
The image is a different shape than the preimage.
The image is a different size than the preimage.
The image has the same angle measures as the preimage.
The image is similar to the preimage.
The image has the same side lengths as the preimage.
Tags
CCSS.8.G.A.3
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Triangle PQR is the image of triangle JKL after a dilation. Is the dilation an enlargement or a reduction? Explain.
Enlargement, because the image is larger than the original figure.
Enlargement, because the image is smaller than the original figure.
Reduction, because the image is smaller than the original figure.
Reduction, because the image is larger than the original figure.
Tags
CCSS.8.G.A.3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A sequence of transformations is required to map ΔPQR onto ΔP’Q’R’. Which is a possible step?
A dilation with scale factor 1
A dilation with scale factor 2
A dilation with scale factor 3
A dilation with scale factor 4
Tags
CCSS.HSG.SRT.A.2
CCSS.8.G.A.4
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Triangle DEF is similar to triangle ABC. What is a sequence of transformations that maps triangle ABC to triangle DEF?
Reflection then rotation
Rotation then dilation with scale factor of 2
Rotation then dilation with scale factor of 0.5
Rotation then translation
Tags
CCSS.HSG.SRT.A.2
CCSS.8.G.A.4
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