Rotation On a coordinate grid. For a Rotation, you need An angle or fraction of a turn –Eg 90° or a Quarter Turn –Eg 180° or a Half Turn A direction –Clockwise.

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Presentation transcript:

Rotation On a coordinate grid

For a Rotation, you need An angle or fraction of a turn –Eg 90° or a Quarter Turn –Eg 180° or a Half Turn A direction –Clockwise –Anticlockwise A Centre of Rotation –A point around which the Object rotates

y x – 7 – 6 – 5 – 4 – 3 – 2 – A Rotation of 90° Anticlockwise about (0,0) x x x x x

y x – 7 – 6 – 5 – 4 – 3 – 2 – A Rotation of 180° about (0,0) x x x x x x x x