The Four Transformations (Edexcel GCSE Maths): Flashcards
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Practise the cards
13 cards from this deck
Four main transformations in geometry
Four main transformations in geometry
Translation, rotation, reflection, enlargement
Translation effect on shape
Translation effect on shape
Moves shape without changing size, shape, or orientation
Translation vector form
Translation vector form
(x horiz., y vert.)
Positive in translation vector means
Positive in translation vector means
Rightward movement
Negative in translation vector means
Negative in translation vector means
Downward movement
Three elements needed to describe rotation
Three elements needed to describe rotation
Angle, direction, centre of rotation
180° rotation direction property
180° rotation direction property
Direction doesn't matter (same result either way)
To describe a reflection, you need
To describe a reflection, you need
The equation of the mirror line
Two elements needed for enlargement
Two elements needed for enlargement
Scale factor and centre of enlargement
Scale factor formula
Scale factor formula
Scale factor > 1 effect
Scale factor > 1 effect
Shape gets bigger
Negative scale factor effect
Negative scale factor effect
Shape appears on opposite side of centre
Congruent vs similar shapes
Congruent vs similar shapes
Congruent: same size & shape; Similar: same shape, diff size