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## What transformations do not preserve size and shape?

A common type of non-rigid transformation is a **dilation**. A dilation is a similarity transformation that changes the size but not the shape of a figure. Dilations are not rigid transformations because, while they preserve angles, they do not preserve lengths.

## Do translations preserve shape?

Yes, **translations are rigid transformations**. They too preserve angle measure and segment length.

## Which transformation will not keep the shapes congruent?

Engineer and Math Teacher in One! Congruent figures are the same shape and the same size. The only choice that involves changing the size of a figure is letter a) **dilation** and as a result, creates two figures that are NOT congruent.

## Which transformations do not change the size of a figure?

There are three kinds of **isometric** transformations of 2 -dimensional shapes: translations, rotations, and reflections. ( Isometric means that the transformation doesn’t change the size or shape of the figure.)

## Which transformations are Nonrigid transformations?

**Translation and Reflection transformations** are nonrigid transformations.

## What transformation preserves angle but not segment lengths?

When a transformation doesn’t change the side lengths and angle measurements of a shape, we call this preserving length and angle measurement. These are **rigid transformations**. Translations, rotations, and reflections are all rigid transformations.

## What is not preserve congruence?

A translation is considered a “**direct isometry**” because it not only maintains congruence, but it also, unlike reflections and rotations, preserves its orientation. On the other hand, a dilation is not an isometry because its Image is not congruent with its Pre-Image.

## What are non congruent shapes?

the sides, and noncongruent means “not congruent,” that is, **not the same shape**. (Shapes that are reflected and rotated and translated copies of each other are congruent shapes.) So we want triangles that look fundamentally different.

## What is an example of a non congruent shape?

Non-congruent **rectangles**. These two polygons have matching sides equal but their matching angles are not equal and so they are not congruent. They are different shapes even though the sides are the same size. Non-congruent hexagons.

## Which transformations are rigid transformations?

The rigid transformations include **rotations, translations, reflections, or their combination**.

## Which of the following is not a rigid transformation?

Types of transformations Translation, reflection, and rotation are all rigid transformations, while **dilation** is a non-rigid transformation. In non-rigid transformations, the preimage and image are not congruent.

## What is a non-rigid transformation in which the preimage and image of a figure are similar?

**dilation**. A non-rigid transformation in which the preimage and image of a figure are similar. tessellation. A tiling of a plane with figures that leave no gaps or overlaps.