Dilations and Similar Figures Review

Front

What is a scale factor in dilations?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a figure during a dilation. It determines how much larger or smaller the image will be compared to the original figure.

Front

What happens to a figure when the scale factor is greater than 1?

Back

When the scale factor is greater than 1, the figure is enlarged.

Front

What happens to a figure when the scale factor is less than 1?

Back

When the scale factor is less than 1, the figure is reduced.

Front

What is the definition of similar figures?

Back

Similar figures are figures that have the same shape but may have different sizes. Their corresponding angles are equal, and the ratios of their corresponding sides are proportional.

Front

How do you determine if two figures are similar?

Back

To determine if two figures are similar, check if their corresponding angles are equal and if the ratios of their corresponding sides are equal.

Front

What is the image in a transformation?

Back

The image is the figure that results after a transformation has occurred.

Front

What is the pre-image in a transformation?

Back

The pre-image is the original figure before any transformation is applied.

Front

What mathematical operation is used with the scale factor in a dilation?

Back

Multiplication is used with the scale factor in a dilation.

Front

If a dilation has a scale factor of 1/2, what type of transformation is it?

Back

It is a reduction.

Front

What is the relationship between corresponding angles in similar figures?

Back

In similar figures, corresponding angles are equal.