Similarity Lessons 5 and 6

Front

What is the scale factor of the dilation that takes Q to P?

Back

Front

What is the scale factor of the dilation that takes P to Q?

Back

Front

The length of AB is ____ units.

Back

The length of AB is 6 units.

Front

What is our definition of similarity?

Back

If there is a sequence of rigid transformations and dilations that take one figure to the other, then they are similar.

Front

What is the measure of angle A′B′C?

Back

Front

What is a dilation in geometry?

Back

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.

Front

What does it mean for two figures to be similar?

Back

Two figures are similar if their corresponding angles are equal and their corresponding side lengths are proportional.

Front

How do you find the scale factor of a dilation?

Back

The scale factor is found by dividing the length of a side of the image by the length of the corresponding side of the original figure.

Front

What is the relationship between the angles of similar figures?

Back

The corresponding angles of similar figures are equal.

Front

What is the relationship between the side lengths of similar figures?

Back

The corresponding side lengths of similar figures are proportional.