Scale Factor
Flashcard
•
Mathematics
•
7th Grade
•
Hard
+2
Standards-aligned
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15 questions
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1.
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 proportional relationship between two similar figures.
Tags
CCSS.7.G.A.1
2.
FLASHCARD QUESTION
Front
How do you calculate the scale factor between two similar figures?
Back
To calculate the scale factor, divide the length of a side of one figure by the corresponding length of a side of the other figure.
Tags
CCSS.7.G.A.1
3.
FLASHCARD QUESTION
Front
If the scale factor is 2, what does that imply about the sizes of the two figures?
Back
It implies that the second figure is twice the size of the first figure.
Tags
CCSS.7.G.A.1
4.
FLASHCARD QUESTION
Front
What is the scale factor if a side of a smaller triangle measures 3 cm and the corresponding side of a larger triangle measures 9 cm?
Back
The scale factor is 9 cm / 3 cm = 3.
Tags
CCSS.7.G.A.1
5.
FLASHCARD QUESTION
Front
If the scale factor from figure A to figure B is 4, what is the scale factor from figure B to figure A?
Back
The scale factor from figure B to figure A is 1/4, which is the reciprocal of 4.
Tags
CCSS.7.G.A.1
6.
FLASHCARD QUESTION
Front
What does it mean for two figures to be similar?
Back
Two figures are similar if they have the same shape but not necessarily the same size, and their corresponding angles are equal while their corresponding sides are in proportion.
Tags
CCSS.8.G.A.2
CCSS.HSG.CO.B.6
7.
FLASHCARD QUESTION
Front
If a triangle has a scale factor of 3, and one of its sides is 5 cm, what is the length of the corresponding side in the similar triangle?
Back
The length of the corresponding side in the similar triangle is 5 cm * 3 = 15 cm.
Tags
CCSS.8.G.A.3
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