Rotations (Leaving Cert Mathematics): Flashcards
📚Flashcards
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10 cards from this deck
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Practise the cards
10 cards from this deck
What is rotation?
What is rotation?
Turning a shape around a point by a certain angle
Centre of rotation
Centre of rotation
Fixed point around which a shape rotates
Size of image after rotation
Size of image after rotation
Same size as original
Distance from centre to point after rotation
Distance from centre to point after rotation
Remains the same
Typical angles of rotation
Typical angles of rotation
, , or
Two possible directions of rotation
Two possible directions of rotation
Clockwise or anti-clockwise
Three things needed to describe a rotation
Three things needed to describe a rotation
Centre, direction, and angle
Centre of rotation is a ___ point
Centre of rotation is a ___ point
Fixed
clockwise equals what anti-clockwise rotation
clockwise equals what anti-clockwise rotation
anti-clockwise
Does direction matter for rotation
Does direction matter for rotation
No, result is same either way