Ratios, Proportions, and Scale Factors
Flashcard
•
Mathematics
•
10th Grade
•
Hard
+6
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a ratio?
Back
A ratio is a comparison of two quantities expressed as a fraction, indicating how many times one value contains or is contained within the other.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
2.
FLASHCARD QUESTION
Front
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal.
Tags
CCSS.7.RP.A.2A
3.
FLASHCARD QUESTION
Front
What is a scale factor?
Back
A scale factor is a number that scales, or multiplies, some quantity. It is used to determine the size of an object in relation to another object.
4.
FLASHCARD QUESTION
Front
How do you find a missing side in similar figures?
Back
To find a missing side in similar figures, set up a proportion using the corresponding sides of the figures and solve for the unknown.
Tags
CCSS.HSG.SRT.A.2
5.
FLASHCARD QUESTION
Front
If two triangles are similar, what can be said about their corresponding angles?
Back
If two triangles are similar, their corresponding angles are equal.
Tags
CCSS.HSG.SRT.A.2
6.
FLASHCARD QUESTION
Front
If the scale factor from a small shape to a big shape is 2, what does this mean?
Back
This means that each dimension of the big shape is twice as long as the corresponding dimension of the small shape.
Tags
CCSS.7.G.A.1
7.
FLASHCARD QUESTION
Front
What is the relationship between the perimeters of similar figures?
Back
The ratio of the perimeters of similar figures is equal to the ratio of their corresponding sides.
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