AQA · Mathematics · 8300
GCSE Maths: Congruent shapes
Geometry & Measures · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths practice questions for Congruent shapes (Corbettmaths Video 66), 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 does it mean for two shapes to be congruent?
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They are exactly the same shape and size (though they may be rotated or reflected).
What is the formula for the area of a rectangle?
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Length × width (or base × height).
What is the formula for the perimeter of a rectangle?
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2 × length + 2 × width (or add all four sides).
What are the three main types of triangle based on side lengths?
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Equilateral (all sides equal), isosceles (two sides equal), and scalene (no sides equal).
What defines a right-angled triangle?
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A triangle with one 90-degree angle.
What is a scale factor in an enlargement?
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The ratio by which each length in the original shape is multiplied to create the enlarged shape.
If two shapes are congruent, what can you say about their areas?
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They have the same area, because they are identical in size and shape.
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