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## Lesson details

### Key learning points

- In this lesson, we will investigate different shape transformations, and determine whether a given shape has been reflected or translated.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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### 5 Questions

Q1.

Which of the below mean the same as a line of reflection?

Straight line

Unequal line

Wiggly line

Q2.

If the distance between point A and its reflected point (A') is 12 squares then which of the statements below is true?

The distance between the mirror line and A is 12 squares

The distance between the mirror line and A is 24 squares

The distance between the mirror line and A' is also 12 squares

Q3.

If distance between point B and a mirror line is 9 squares, then which of the following statements below is true?

The distance between B and B' is 4.5 squares

The distance between B and B' is also 9 squares

The distance between the mirror line and B' is 4.5 squares

Q4.

The coordinates (-4,-4) and (-4,-2) are reflected, after reflection (-4,-4) becomes (3,3) and (-4,-2) becomes (1,3), which of the following statements is true?

The line of reflection is vertical

The x axis is the line of reflection

The y axis is the line of reflection

Q5.

A point with coordinates (1,-4) and (1,-3) are reflected to become (-3,-4) and (-3,-3) what do we know about the mirror line?

It is a diagonal line

It is a horizontal line

We do not have enough information

### 5 Questions

Q1.

How many types of transformations are there?

2

3

6

Q2.

Which statement below is correct?

Reflections and Translations always look the same

Reflections and Translations never look the same

You can easily tell if congruent shapes have been reflected or translated

Q3.

Which statement below is correct?

It is only hard to tell if a shape has been translated or reflected if the shape is a quadrilateral

It is only hard to tell if a shape has been translated or reflected if the shape is a rectangle

It is only hard to tell if a shape has been translated or reflected if the shape is regular

Q4.

Which statement below is correct?

If a right angled triangle has been reflected along the x axis then it is not obvious whether it has been reflected and not translated

If a right angled triangle has been reflected along the y axis then it is not obvious whether it has been reflected or translated

If an equilateral triangle has been reflected along the y axis then it is obvious that it has been reflected and not translated

Q5.

If the vertices of triangle A are (-5,3), (-5,1) and (-2,1) and the vertices of triangle B are (-5,-1), (-5,-3) and (-2,-3), which of the below best describes the transformation from A to B?

Reflected onto the x axis

Reflected onto the y axis

Translated down by 4 squares