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Rotation

Maths: Edexcel A Level Pure Maths, topic 2.7.2

Rotations

Using x and y coordinates, we can rotate shapes on a graph.

90o rotation

90o rotation

  • Shape A has rotated 90o anti-clockwise to become shape B.
  • The x and y coordinates for shape A and B swapped.
  • The x coordinates have changed sign but the y coordinates have not.
180o rotation

180o rotation

  • Shape A has rotated 180o anti-clockwise to become shape B.
  • The x and y coordinates for shape A and B are the same but have changed sign.
270o rotation

270o rotation

  • Shape A has rotated 270o anticlockwise to become shape B.
  • The x and y coordinates for shape A and B swapped.
  • The y coordinates have changed sign but the x coordinates have not.

Test yourself on Rotation

  • How many degrees has shape A rotated to become shape B?

  • How many degrees has shape A rotated to become shape B?

  • How many degrees clockwise has shape A rotated to become shape B?

  • How many degrees has shape A rotated to become shape B?

  • This shape has rotated clockwise. How any degrees has it rotated by?

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