- What creates a mirror image of the original figure?
- When one half of a figure is a mirror image of the other half?
- What does a translation do to an image?
- What is a transformation that turns a figure?
- Are all images or new figures that result from a translation always congruent to the original figure?
- What are the three types of rigid transformation?
- What is a line of reflection?
- Is dilating a congruence transformation?
- Is translating a congruence transformation?
- What is another name for the original figure?
- What is a transformation in which the original figure and its image are similar?

## What creates a mirror image of the original figure?

A reflection is a transformation in which a figure is reflected in a line called the line of reflection.

A reflection creates a mirror image of the original figure.

Reflecting a figure in the x-axis or the y-axis changes the coordinates of the figure as follows..

## When one half of a figure is a mirror image of the other half?

A Reflectional Symmetry is a type of symmetry in which one half of the object is the mirror image of the other. A figure may have both horizontal and vertical lines of reflection. An object and its image are always at the same distance from the surface of a mirror, which is called the mirror line.

## What does a translation do to an image?

Translation is a term used in geometry to describe a function that moves an object a certain distance. The object is not altered in any other way. It is not rotated, reflected or re-sized. The rust-colored item is the pre-image, and the blue item is the image.

## What is a transformation that turns a figure?

rotationA rotation is a transformation that turns a figure about a fixed point called the center of rotation.

## Are all images or new figures that result from a translation always congruent to the original figure?

Recall from Lesson 14-1 that congruent figures are figures with the same size and shape and that a translation image is always congruent to its preimage.

## What are the three types of rigid transformation?

A rigid transformation does not change the size or shape of the preimage when producing the image. Three transformations are rigid. The rigid transformations are reflection, rotation, and translation. The image from these transformations will not change its size or shape.

## What is a line of reflection?

When reflecting a figure in a line or in a point, the image is congruent to the preimage. A reflection maps every point of a figure to an image across a fixed line. The fixed line is called the line of reflection.

## Is dilating a congruence transformation?

Note that the stretching (or shrinking) of a shape is called a dilation. It is clear that dilation is not a congruent transformation, because the size of the shape is changed.

## Is translating a congruence transformation?

A congruence transformation is a transformation that doesn’t change the size or shape of an object. There are three main types of congruence transformations, and those are reflections (flips), rotations (turns), and translations (slides).

## What is another name for the original figure?

preimageTerms in this set (18) The given figure is called the preimage (original) and the resulting figure is called the new image.

## What is a transformation in which the original figure and its image are similar?

isometry. Also known as congruence transformation. A transformation in which an original figure and its image are congruent. The four types are reflections, rotations, translations, and glide reflections. dilation.