
6.1-6.4 similarity through transformation
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
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1.
FLASHCARD QUESTION
Front
What is a dilation in geometry?
Back
A dilation is a transformation that alters the size of a figure but not its shape, using a scale factor.
Tags
CCSS.8.G.A.3
2.
FLASHCARD QUESTION
Front
If a triangle has a side length of 4 units and undergoes a dilation with a scale factor of 2, what is the new length?
Back
8 units.
Tags
CCSS.8.G.A.3
3.
FLASHCARD QUESTION
Front
What is the scale factor in a dilation?
Back
The scale factor is the ratio of the length of a side of the image to the length of the corresponding side of the original figure.
Tags
CCSS.8.G.A.3
4.
FLASHCARD QUESTION
Front
Which of the following transformations is a dilation? (x, y) → (x, 3y), (x, y) → (3x, 3y), (x, y) → (x, y - 3), (x, y) → (.5x, .4y)
Back
(x, y) → (3x, 3y) is a dilation.
Tags
CCSS.8.G.A.3
5.
FLASHCARD QUESTION
Front
How do you determine if two figures are similar?
Back
Two figures are similar if their corresponding angles are equal and the lengths of their corresponding sides are proportional.
Tags
CCSS.8.G.A.2
CCSS.HSG.CO.B.6
6.
FLASHCARD QUESTION
Front
What is the relationship between the scale factor and the lengths of corresponding sides in similar figures?
Back
The lengths of corresponding sides in similar figures are proportional to the scale factor.
Tags
CCSS.7.G.A.1
7.
FLASHCARD QUESTION
Front
If a triangle is dilated by a scale factor of 0.5, what happens to its size?
Back
The triangle will be reduced to half its original size.
Tags
CCSS.8.G.A.3
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