Rotations (AQA GCSE Maths): Flashcards
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Definition of rotation
Definition of rotation
Transformation turning a shape around a fixed point
3 components to describe a rotation
3 components to describe a rotation
Centre, angle, direction
Meaning of congruent
Meaning of congruent
Same size and shape, different position
What is the centre of rotation?
What is the centre of rotation?
Fixed point the shape rotates around
Common rotation angles
Common rotation angles
, ,
Two directions of rotation
Two directions of rotation
Clockwise or anticlockwise
Direction needed for rotation?
Direction needed for rotation?
No, result is same both ways
Angle of a quarter turn
Angle of a quarter turn
Definition of isometry
Definition of isometry
Transformation preserving distance & angle measurements
Properties preserved by rotation
Properties preserved by rotation
Equal sides, angles; area & perimeter unchanged