Scale Factor Geometry Quiz Form
Answer all questions below. This quiz assesses your understanding of scale factors in geometry. Please complete all items carefully.
What is the scale factor if a triangle with side length 5 cm is enlarged to a triangle with side length 20 cm?
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A rectangle is reduced by a scale factor of 0.5. If the original width was 12 units, what is the new width?
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Which of the following scale factors represents an enlargement?
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0.4
1
1.5
0
If a square with area 36 cm² is enlarged by a scale factor of 3, what is the area of the new square?
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A pentagon is dilated with a scale factor of 2. What happens to the perimeter?
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It doubles
It triples
It stays the same
It is halved
Match each original shape to its image after applying the given scale factor.
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Rows
Scale factor 0.5
Scale factor 2
Triangle
A
B
C
A
B
C
Rectangle
A
B
C
A
B
C
Circle
A
B
C
A
B
C
A line segment is 8 cm long. After a dilation with a scale factor of 1.25, what is the new length?
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Which statement is true about scale factors less than 1?
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They enlarge the figure
They reduce the figure
They do not change the figure
They make the figure disappear
If the scale factor is negative, what happens to the orientation of the image?
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It is preserved
It is reversed
It disappears
It doubles
Explain how to find the scale factor between two similar shapes.
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