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# Transformations

All about Rotation, Reflection and Translation!
by

## Sam Downe

on 8 March 2012

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#### Transcript of Transformations

Transformations
Introduction
What is a transformation?
A way of changing the position or orientation.
4 Main types of transformation
Rotation
"Turning a shape around"
We need to know the...
and also the...
and the ...
Angle of Rotation
Center of Rotation
Direction, (clockwise or anti-clockwise)
Reflection
"Flipping" a shape using a ...
Mirror Line
We need to know...
Where the mirror line is:
x = ?
y = ?
y = x
y = - x
All distances to and from the mirror line are...
equal
Translation
Moving a shape...
LEFT
RIGHT
UP
OR...
DOWN
The new shape is ...
and the orientation ...
Congruent
hasn't changed.
Key Words
Rotation
Reflection
Translation
Center of Rotation
Congruent
Mirror Line
Angle of Rotation
Orientation
Anti-Clockwise
Co-ordinates
Origin
Enlargement
Changing the size of a shape
We need to know...
and the ...
Scale Factor
Centre of Enlargement
Don't forget: Area Scale Factor is...
Scale factor squared
Clockwise
Vector
Enlargement
Centre of Enlargement
Scale Factor
Area Scale Factor
Similar
Full transcript