# Transformation

### By : Iang Tin Thluai

## Reflection

Reflection is a transformation where each point in a shape appears at an equal distance on the opposite side of a given line. Reflection is a mirror image of the original figure. Reflection has to be congruent too. A reflection is like a shadow too.

## Rotation

Rotation is a transformation that turns the figure at a fixed point. Like all of the other transformations, rotation's figures have to be congruent. If it's not congruent and it doesn't turn at a fixed point then it's not a rotation. The fixed point at which a figure is rotated is called a centre of rotation.

## Rotation of Figure The blue dot is the centre rotation. It is easier to tell whether a figure is congruent, on grid paper. | ## Rotation of Figure On this picture, the centre rotation is not on the figure, but close to it. | ## Rotation of Figure In this picture, the figure is rotated and the centre rotation is inside the figures. The centre rotation point is the "C" point. |

## Rotation of Figure

The blue dot is the centre rotation. It is easier to tell whether a figure is congruent, on grid paper.

## Congruent

Congruent figures have the same size and are the same shape. Two shapes are congruent if you can "Turn, Flip, or Slide" the figure and fit the exactly as the other.

## Congruency These two shapes are the same size and same shape. | ## Congruency These angles are them same because you just have to flip it then then the two angles will match exactly the same. | ## Congruency " The Descriptions are on the page with the picture" |