Scale Factors and Area
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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 how much larger or smaller a figure is compared to the original.
Tags
CCSS.7.G.A.1
2.
FLASHCARD QUESTION
Front
How do you calculate the area of a rectangle?
Back
Area = length × width.
Tags
CCSS.3.MD.C.7B
CCSS.4.MD.A.3
3.
FLASHCARD QUESTION
Front
If a rectangle has an area of 72 sq. cm and is reduced by a scale factor of 1/8, what is the new area?
Back
18 sq. cm.
Tags
CCSS.7.G.A.1
4.
FLASHCARD QUESTION
Front
What is the relationship between scale factor and area?
Back
The area of a shape changes by the square of the scale factor. If the scale factor is k, the new area = original area × k².
Tags
CCSS.7.G.A.1
5.
FLASHCARD QUESTION
Front
What is the scale from the drawing to the actual stop sign if it is 1 in.: 6 in.?
Back
The scale indicates that 1 inch on the drawing represents 6 inches in reality.
Tags
CCSS.7.G.A.1
6.
FLASHCARD QUESTION
Front
If a wall is 3 cm on a blueprint with a scale of 1 cm: 5 m, what is the actual length of the wall?
Back
15 meters.
Tags
CCSS.7.G.A.1
7.
FLASHCARD QUESTION
Front
What does it mean if a drawing has a scale factor of 3/5?
Back
It means the drawing is 3/5 the size of the original image.
Tags
CCSS.7.G.A.1
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