3.1.1 Geometry Similarity and Dilations

Front

If two figures are similar, the corresponding sides are ______________.

Back

proportional

Front

If two figures are similar, the corresponding angles are ______________.

Back

Congruent

Front

How does a dilation change the angles of a polygon?

Back

Dilations do not change the angles.

Front

A dilation is which of the following:

Back

Either an enlargement or a reduction.

Front

Back

Front

What is the definition of similar figures?

Back

Figures that have the same shape but may differ in size.

Front

What is the scale factor in a dilation?

Back

The ratio of the lengths of corresponding sides of the original figure to the dilated figure.

Front

What happens to the lengths of sides in a dilation?

Back

The lengths of the sides are multiplied by the scale factor.

Front

What is the relationship between the angles of similar figures?

Back

The angles are congruent.

Front

What is the effect of a dilation with a scale factor less than 1?

Back

It reduces the size of the figure.