Unit 4 Test Review (Geometry)

Front

What is a dilation in geometry?

Back

A transformation that alters the size of a shape but keeps its proportions the same.

Front

What happens when a dilation has a scale factor greater than one?

Back

The dilation results in an enlargement of the shape.

Front

What does it mean for two shapes to be similar?

Back

They have the same shape but different sizes.

Front

What is the scale factor in a dilation?

Back

The ratio of the size of the image to the size of the original shape.

Front

Back

The corresponding angles are equal.

Front

What is the similarity statement for triangles?

Back

It expresses that two triangles are similar, indicating the correspondence of their vertices.

Front

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

Back

Divide the length of a side of the image by the length of the corresponding side of the original shape.

Front

What is the relationship between the areas of two similar shapes?

Back

The ratio of their areas is the square of the ratio of their corresponding side lengths.

Front

What does it mean for two angles to be congruent?

Back

They have the same measure.

Front

Back

The lengths of corresponding sides are proportional.