Scaling Practice before the Flashcard

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 another figure.

Front

How do you find the scale factor between two similar figures?

Back

To find the scale factor, divide the length of a side of the larger figure by the length of the corresponding side of the smaller figure.

Front

What does it mean for two figures to be scaled copies of each other?

Back

Two figures are scaled copies if they have the same shape but different sizes, and their corresponding sides are in proportion.

Front

What are corresponding sides?

Back

Corresponding sides are sides that are in the same position in different shapes or figures.

Front

What are corresponding angles?

Back

Corresponding angles are angles that are in the same position in different shapes or figures.

Front

If the scale factor is 3, how much larger is the larger figure compared to the smaller figure?

Back

The larger figure is 3 times larger than the smaller figure.

Front

If a triangle has sides of lengths 2, 3, and 4, what would be the lengths of the sides of a triangle that is a scaled copy with a scale factor of 2?

Back

The sides would be 4, 6, and 8.

Front

What is the scale factor from ΔABC to ΔDEF if the sides of ΔDEF are twice as long as those of ΔABC?

Back

The scale factor is 2.

Front

What is the relationship between the angles of similar figures?

Back

The corresponding angles of similar figures are equal.

Front

If the scale factor from a small fry to a large fry is 3, what is the ratio of the small fry's size to the large fry's size?

Back

The ratio is 1:3.