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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  1. 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.

  2. 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.

  3. 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.

  4. When a shape is enlarged by scale factor 1/3, each dimension of the shape is multiplied by ?.

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    1/3

  5. 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.

  6. 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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