Dilations and Scale Factor Flashcard

Front

What is a dilation in geometry?

Back

A transformation that changes the size of a figure but not its shape.

Front

How does the scale factor affect the size of a figure in a dilation?

Back

It either enlarges or reduces the size of the figure.

Front

If the scale factor is greater than 1, what happens to the size of the figure in a dilation?

Back

It increases

Front

If the scale factor is between 0 and 1, what happens to the size of the figure in a dilation?

Back

The size of the figure decreases

Front

How do you calculate the scale factor when given the original and dilated figures' measurements?

Back

Divide the corresponding measurements of the dilated figure by the original figure.

Front

If the scale factor is 2, and the original figure has coordinates (3, 4), what are the coordinates of the dilated figure?

Back

(6, 8)

Front

If the scale factor is 0.5, and the original figure has coordinates (6, 8), what are the coordinates of the dilated figure?

Back

(3, 4)

Front

How can you use the scale factor to perform a dilation on a given figure?

Back

Multiply the coordinates of the figure by the scale factor

Front

What happens to the size of a figure in a dilation if the scale factor is less than 0?

Back

The size of the figure decreases

Front

If the scale factor is 3, and the original figure has coordinates (2, 5), what are the coordinates of the dilated figure?

Back

(6, 15)