
Dilations Perimeter Area
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A square with a side length of 4 cm was dilated by a scale factor of 7/4 to form a square with a side length of 7 cm. How does the area of the image of the square relate to the original?
The area of the image is 7/4 the area of the original.
The area of the image is 4/7 the area of the original.
The area of the image is 49/16 the area of the original.
The area of the image is 16/49 the area of the original.
Tags
CCSS.7.G.A.1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The lengths, in centimeters, of the sides of quadrilateral ABCD are as follows: AB = 3, BC = 4, CD = 5, and AD = 5. Quadrilateral ABCD is dilated by a scale factor of 2.5 to form quadrilateral A’B’C’D’, Which statement about the side lengths of quadrilateral A’B’C’D’ is true?
A'B' = 6
B’C’ = 8
A'B' = 1.2
B’C’ = 1.6
A'D' = C'D' = 12.5
B’C’ = 10
A'D' = C'D' = 2
Tags
CCSS.8.G.A.3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the shape is dilated by a scale factor of 1/3. What is the new perimeter?
12
18
36
9
Tags
CCSS.8.G.A.3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the shape is dilated by a scale factor of 6. What is the new perimeter?
40
240
60
360
Tags
CCSS.7.G.A.1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the shape is dilated by a scale factor of 2. What is the new area (round to the tenths place)?
150.3
201.1
120.1
50.3
Tags
CCSS.7.G.A.1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the proportion.
k=5
k=3.3333333
k=60
k=90
Tags
CCSS.6.EE.B.7
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the shape is dilated by a scale factor 1/2. What is the new area?
77
38.5
12.56
9.625
Tags
CCSS.7.G.A.1
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