AQA · Mathematics · 8300
GCSE Maths: Enlargements: fractional scale factor
Geometry & Measures · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths textbook exercise for Enlargements: fractional scale factor (Corbettmaths Video 107), and every card links back to the exact page it came from. Practice tests are drawn from this deck’s own cards. Source material © Corbettmaths — used with attribution.
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What happens to the size of a shape when it is enlarged by a fractional scale factor less than 1?
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The shape becomes smaller.
What happens to the size of a shape when it is enlarged by a fractional scale factor greater than 1?
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The shape becomes larger.
In an enlargement transformation, what additional piece of information must be specified along with the scale factor?
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The centre of enlargement.
When a shape is enlarged by scale factor 1/3, each dimension of the shape is multiplied by ?.
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1/3
How many pieces of information are needed to fully describe an enlargement transformation?
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Three: the type (enlargement), the scale factor, and the centre of enlargement.
Can a centre of enlargement be specified using coordinates?
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Yes, centres of enlargement can be given as coordinate pairs like (0, 1) or (−3, 1).
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