AQA · Mathematics · 8300
GCSE Maths: Enlargements
Geometry & Measures · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths textbook exercise for Enlargements (Corbettmaths Video 104), 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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If a shape is enlarged by scale factor k, by what factor does the area increase?
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k² (the scale factor squared)
When enlarging a shape by scale factor 5, what happens to each linear dimension?
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Each linear dimension is multiplied by 5
In an enlargement, the ? tells you how many times larger each length becomes.
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scale factor
If a rectangle has area 6 cm² and is enlarged by scale factor 2, what is the area of the enlarged rectangle?
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24 cm² (original area × 2² = 6 × 4 = 24)
What is the scale factor of an enlargement if an object's length of 3 cm becomes 9 cm?
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Scale factor 3 (9 ÷ 3 = 3)
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