Comprehensive Review of Dilation and Similarity
Review key concepts of dilations, scale factors, centers of dilation, and similarity. Test your understanding through a comprehensive set of summary problems.
Questions
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MultiChoice
Dilate point (4, -6) centered at origin with scale factor k = 3.
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MultiChoice
If segment AB = 8 and dilated image A'B' = 10, what is the scale factor k?
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MultiChoice
A figure with area 10 sq units is dilated by scale factor k = 5. What is the image area?
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MultiChoice
Dilate P(5, 7) by k = 2 centered at C(2, 2). Find P'.
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MultiChoice
Line L: y = 4x + 2 is dilated centered at origin with k = 3. Describe the image line L'.
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MultiChoice
Image point M' is (15, 21) after dilation centered at origin with k = 3. What was M?
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MultiChoice
A scale factor of k = 0.85 represents what type of transformation?
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MultiChoice
Point N(-6, 2) dilated by k = 2 about origin gives (-12, 4). Reflected over y-axis gives N'' at:
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MultiChoice
Which measurement remains invariant when a geometric shape is dilated?
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MultiChoice
Triangle with perimeter 18 units is dilated with k = 4/3. What is the new perimeter?
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MultiChoice
Point A(2, 4) maps to A'(8, 16) and B(3, 1) maps to B'(12, 4) with k = 4. Find center of dilation.
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MultiChoice
If all linear dimensions of a 2D shape are multiplied by 4, its area is multiplied by: