7th Grade Math Study Guide: Scale Factor

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Questions and Answers

What does the scale factor do in relation to a figure?

It multiplies the side lengths to create a new figure. (correct)
It adds a constant length to each side.
It decreases the size of the figure.
It creates a three-dimensional shape from a two-dimensional one.

A scale factor can only be a whole number.

False (B)

What is the scale factor if you multiply the side lengths of a triangle by 3?

The scale factor is used to create a ____ of a geometric figure.

<p>similarity</p> Signup and view all the answers

Match the following terms with their descriptions:

<p>Scale Factor = A number used to multiply side lengths New Figure = The result of applying the scale factor Side Lengths = The lengths of the edges of a figure Similar Figures = Figures with proportional dimensions but different sizes</p> Signup and view all the answers

Study Notes

Scale Factor

A scale factor is a numerical value used to resize geometric figures.
By multiplying the original side lengths of a shape by the scale factor, new dimensions are obtained.
The scale factor can result in enlargement (greater than 1) or reduction (less than 1) of the figure.
Scale factors are essential in topics such as similar figures, where shapes maintain proportionality despite size changes.
Understanding scale factor is crucial for applications in real-world scenarios like architecture, engineering, and model-making.

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Description

This quiz focuses on the concept of scale factor in 7th grade math. Students will learn how to multiply side lengths to create new figures while understanding the importance of scale in geometry. Test your knowledge and see how well you can apply this essential mathematical concept!