Transformation flashcard

Front

What is the original figure prior to a transformation called?

Back

Pre-image

Front

What does congruent mean?

Back

The same size and same shape.

Front

What is the algebraic representation for a dilation?

Back

(x, y) → (3x, 3y)

Front

What do rotations, translations, and reflections have in common?

Back

They all have corresponding angles.

Front

A dilation always produces a similar figure. Similar figures have the same ______ but different ______.

Back

shape; sizes.

Front

What is a transformation in geometry?

Back

A change in the position, size, or shape of a figure.

Front

What is a rotation?

Back

A transformation that turns a figure around a fixed point.

Front

What is a translation?

Back

A transformation that slides a figure from one position to another without turning it.

Front

What is a reflection?

Back

A transformation that flips a figure over a line to create a mirror image.

Front

What is the difference between congruent and similar figures?

Back

Congruent figures are the same size and shape; similar figures have the same shape but different sizes.