Scale Copies

Front

What is the scale factor?

Back

The scale factor is a number that scales, or multiplies, a quantity. It determines how much larger or smaller a figure is compared to the original.

Front

What is the scale factor from the small fry to the large fry if the large fry is 3 times bigger?

Back

3

Front

If the scale factor is greater than one, what happens to the new figure?

Back

The new figure will be an enlargement.

Front

What do we call sides that are in the same position in different shapes?

Back

Corresponding Sides.

Front

If the scale factor is less than one, what happens to the new figure?

Back

The new figure will be a reduction.

Front

What is an example of a scale factor of 4 in a real-world context?

Back

If a model car is 4 times larger than the actual car, the scale factor is 4.

Front

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

Back

Divide the length of a side of the larger shape by the length of the corresponding side of the smaller shape.

Front

What is the relationship between scale factors and area?

Back

If the scale factor is k, the area of the new shape is k² times the area of the original shape.

Front

What is the scale factor if a shape is reduced to half its size?

Back

1/2

Front

What does it mean for two shapes to be similar?

Back

Two shapes are similar if they have the same shape but different sizes, and their corresponding angles are equal.