Unit 5 Quiz Review Dilations And Similar Figures.
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Transcript of Unit 5 Quiz Review Dilations And Similar Figures.
![Page 1: Unit 5 Quiz Review Dilations And Similar Figures.](https://reader033.fdocuments.in/reader033/viewer/2022061305/55144766550346414e8b4c70/html5/thumbnails/1.jpg)
Unit 5 Quiz Review
Dilations
And
Similar Figures
![Page 2: Unit 5 Quiz Review Dilations And Similar Figures.](https://reader033.fdocuments.in/reader033/viewer/2022061305/55144766550346414e8b4c70/html5/thumbnails/2.jpg)
1 – Dilate the figure by a scale factor of 200%
Original Points
A (0,4)
B (-6,5)
C (-8,5)
D (-12, 4)
New Points
A’ ( )
B’ ( )
C’ ( )
D’ ( )
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2- What is the scale factor of the reduction of from QRSXYZ
X
Y Z
SR
Q
4 in
3 in
1.5 in
2 in
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3- If I dilate a figure by 175% the new figure will be _______ than the original figure. This is called a(n) _______________.
![Page 5: Unit 5 Quiz Review Dilations And Similar Figures.](https://reader033.fdocuments.in/reader033/viewer/2022061305/55144766550346414e8b4c70/html5/thumbnails/5.jpg)
4- If I dilate a figure by 75% the new figure will be _________ than the original figure. This is called a(n) _______________.
![Page 6: Unit 5 Quiz Review Dilations And Similar Figures.](https://reader033.fdocuments.in/reader033/viewer/2022061305/55144766550346414e8b4c70/html5/thumbnails/6.jpg)
5- Dilate the point (3,7) by a scale factor of ½.
Write the scale factor as a decimal and a percent.
Write if the dilated figure will be bigger or smaller (in proper mathematical terms)
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6. In the diagram below, what is the ratio of the area of Triangle PQR to the area of Triangle LMN?
5 m.
L
M N
P
Q R
8 m.4 m.
3 m.
5 m.
![Page 8: Unit 5 Quiz Review Dilations And Similar Figures.](https://reader033.fdocuments.in/reader033/viewer/2022061305/55144766550346414e8b4c70/html5/thumbnails/8.jpg)
7. If the sides of two similar rectangles have a ratio of , what is the ratio of their areas?
11
4
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8. If the ratio of two areas of two similar triangles is 1:16, what is the ratio of the sides of the similar triangles?
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9- Given the figures are similar, if the area of pentagon A is 12 square inches, what is the area of pentagon B?
2”
2” 4”
4”
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10- What is the scale factor of the enlargement?
20”
10”
24”
15”
36”
30”
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11-What is the length of the missing side if the ratio of the areas (B:A) is 9/16?
6 in x in
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12- What is the height of the tree?
Tree’s shadow: 50 ft. Boy’s shadow: 10 ft.
X ft.
4 ft.
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13- What relationship do you see between the ratio of sides of two similar rectangles and the ratio of the areas of two similar rectangles?