Dilations

Front

What is a dilation in geometry?

Back

A transformation that alters the size of a figure but keeps its shape, using a scale factor.

Front

What is the scale factor in a dilation?

Back

A number that scales, or multiplies, the dimensions of a figure during a dilation.

Front

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

Back

The figure enlarges.

Front

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

Back

The figure reduces in size.

Front

What is the pre-image in a transformation?

Back

The original figure before any transformation occurs.

Front

What is the image in a transformation?

Back

The resulting figure after a transformation has occurred.

Front

What does it mean for figures to be similar?

Back

They have the same shape but may differ in size.

Front

If a figure is dilated by a scale factor of 2, what happens to its dimensions?

Back

All dimensions are multiplied by 2.

Front

What is the center of dilation?

Back

The fixed point in a dilation from which all points are expanded or contracted.

Front

How do you find the coordinates of a dilated point?

Back

Multiply the original coordinates by the scale factor.