Dilations and Other Transformations

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way to produce a new shape.

Front

What are the four main types of transformations?

Back

The four main types of transformations are translations, reflections, rotations, and dilations.

Front

What is a dilation?

Back

A dilation is a transformation that changes the size of a figure but not its shape, using a scale factor.

Front

What is the scale factor in a dilation?

Back

The scale factor is the ratio of a length of the new figure to the corresponding length on the original figure.

Front

How do you write the algebraic notation for a dilation with a scale factor of 2?

Back

(x, y) → (2x, 2y)